List of U.S. counties named after rivers
Encyclopedia
This is a list of U.S. counties which are named for rivers.
Counties possibly named for rivers
- Cumberland County, Illinois: Cumberland is named for either the Cumberland RiverCumberland RiverThe Cumberland River is a waterway in the Southern United States. It is long. It starts in Harlan County in far southeastern Kentucky between Pine and Cumberland mountains, flows through southern Kentucky, crosses into northern Tennessee, and then curves back up into western Kentucky before...
or the Cumberland Road. - San Juan County, UtahSan Juan County, UtahAs of the current census of 2010, there were 14,746 people and 4,505 households. The racial and ethnic composition of the population was 50.4% Native American, 45.8% white, 0.3% Asian, 0.2% African American and 2.3% reporting two or more races...
: San Juan is possibly named for the San Juan River. - Skamania County, Washington: Skamania is named for a ChinookanChinookanChinook refers to several native amercain groups of in the Pacific Northwest region of the United States, speaking the Chinookan languages. In the early 19th century, the Chinookan-speaking peoples lived along the lower and middle Columbia River in present-day Oregon and Washington...
word meaning swift water.
Counties indirectly named for rivers
- Aroostook County, MaineAroostook County, MaineAroostook County is a county located in the U.S. state of Maine. In 2010, its population was 71,870. In land area, it is the largest county in the state and the largest U.S. county east of the Mississippi River. Its seat is Houlton...
: Aroostook is named for a Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
word meaning beautiful river. - Canyon County, IdahoCanyon County, IdahoCanyon County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 188,923. The county seat is Caldwell, and its largest city is Nampa.. Canyon County is part of the Boise City–Nampa, Idaho Metropolitan Statistical Area.- History :The county was...
: Canyon is named after either the Boise RiverBoise RiverThe Boise River is a tributary of the Snake River in the northwestern United States. It drains a rugged portion of the Sawtooth Range in southwestern Idaho northeast of Boise, as well as part of the western Snake River Plain...
or Snake RiverSnake RiverThe Snake is a major river of the greater Pacific Northwest in the United States. At long, it is the largest tributary of the Columbia River, the largest North American river that empties into the Pacific Ocean...
canyonCanyonA canyon or gorge is a deep ravine between cliffs often carved from the landscape by a river. Rivers have a natural tendency to reach a baseline elevation, which is the same elevation as the body of water it will eventually drain into. This forms a canyon. Most canyons were formed by a process of...
s. - Coos County, New HampshireCoos County, New Hampshire-National protected areas:*Umbagog National Wildlife Refuge *Silvio O. Conte National Fish and Wildlife Refuge *White Mountain National Forest -Demographics:...
: Coos is named for a Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
word meaning crooked, in reference to a bend in the Connecticut RiverConnecticut RiverThe Connecticut River is the largest and longest river in New England, and also an American Heritage River. It flows roughly south, starting from the Fourth Connecticut Lake in New Hampshire. After flowing through the remaining Connecticut Lakes and Lake Francis, it defines the border between the...
. - Crow Wing County, MinnesotaCrow Wing County, MinnesotaCrow Wing County is a county located in the U.S. state of Minnesota. As of 2010, the population was 62,500. Its county seat is Brainerd.-Geography:...
: Crow Wing is named after an island shaped like a ravenRavenRaven is the common name given to several larger-bodied members of the genus Corvus—but in Europe and North America the Common Raven is normally implied...
's wing at the junction of the Crow Wing RiverCrow Wing RiverThe Crow Wing River is a tributary of the Mississippi River approximately in length. The river arises in a chain of 11 lakes in southern Hubbard County, Minnesota and flows generally southeast, entering the Mississippi at Crow Wing State Park, northwest of Little Falls, Minnesota. Its name is a...
and Mississippi RiverMississippi RiverThe Mississippi River is the largest river system in North America. Flowing entirely in the United States, this river rises in western Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains...
. - Huerfano County, ColoradoHuerfano County, ColoradoHuerfano County is one of the 64 counties of the State of Colorado of the United States. The county was named for the Huerfano Butte, a local landmark. The county population was 7,862 at U.S. Census 2000...
: Huerfano is named for Huerfano ButteHuerfano ButteHuerfano Butte, elevation , is an isolated volcanic neck. A remanent of an ancient volcano, it was named Huerfano by early Spanish explorers of southern Colorado....
, as was the Huerfano RiverHuerfano RiverHuerfano River is a tributary of the Arkansas River that flows from a source near Blanca Peak in the Sangre de Cristo Mountains of Colorado. It joins the Arkansas in Pueblo County just south of the town of Boone....
. Huerfano is orphan in SpanishSpanish languageSpanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...
. - Merced County, CaliforniaMerced County, CaliforniaMerced County , is a county located in the Central Valley of the U.S. state of California, north of Fresno and southeast of San Jose. As of the 2010 census, the population was 255,793, up from 210,554 at the 2000 census. The county seat is Merced...
: Merced is named for the SpanishSpanish languageSpanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...
word for mercy, and was named by Spanish explorers in gratitude for water of the Merced RiverMerced RiverThe Merced River , in the central part of the U.S. state of California, is a -long tributary of the San Joaquin River flowing from the Sierra Nevada into the Central Valley. It is most well known for its swift and steep course through the southern part of Yosemite National Park, and the...
, which was found after a dry 40-mile trek. - Muskingum County, OhioMuskingum County, OhioMuskingum County is a county located in the state of Ohio, United States. As of the 2010 census, the population was 86,074. Its county seat is Zanesville...
: Muskingum is a Delaware word meaning by the river side. - Riverside County, CaliforniaRiverside County, CaliforniaRiverside County is a county in the U.S. state of California. One of 58 California counties, it covers in the southern part of the state, and stretches from Orange County to the Colorado River, which forms the state border with Arizona. The county derives its name from the city of Riverside,...
: Riverside is named for the city of RiversideRiverside, CaliforniaRiverside is a city in Riverside County, California, United States, and the county seat of the eponymous county. Named for its location beside the Santa Ana River, it is the largest city in the Riverside-San Bernardino-Ontario metropolitan area of Southern California, 4th largest inland California...
. - Sagadahoc County, MaineSagadahoc County, MaineSagadahoc County is a county located in the U.S. state of Maine. As of 2010, the population was 35,293. Its county seat is Bath. In total area, it is the smallest county in Maine....
: Sagadahoc is named for a Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
word meaning mouth of big river. - Twin Falls County, IdahoTwin Falls County, IdahoTwin Falls County is a county in the south central part of the U.S. state of Idaho. As of the 2000 Census, the county had a population of 64,284 . The county seat and largest city is Twin Falls....
: Twin Falls is named after the double falls along the Snake RiverSnake RiverThe Snake is a major river of the greater Pacific Northwest in the United States. At long, it is the largest tributary of the Columbia River, the largest North American river that empties into the Pacific Ocean...
. - Yellowstone County, MontanaYellowstone County, Montana-National protected areas:* Nez Perce National Historical Park * Pompeys Pillar National Monument-Demographics:As of the census of 2000, there were 129,352 people, 52,084 households, and 34,219 families residing in the county. The population density was 49 people per square mile . There were...
: Yellowstone is named for the yellow rocks found along what is now known as the Yellowstone RiverYellowstone RiverThe Yellowstone River is a tributary of the Missouri River, approximately long, in the western United States. Considered the principal tributary of the upper Missouri, the river and its tributaries drain a wide area stretching from the Rocky Mountains in the vicinity of the Yellowstone National...
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- Alamance County, North CarolinaAlamance County, North CarolinaAlamance County is a county located in the U.S. state of North Carolina. It coincides with the Burlington, North Carolina, Metropolitan Statistical Area...
: Alamance is named for the Alamance River. - Allegany County, New YorkAllegany County, New YorkAllegany County is a county located in the U.S. state of New York. As of the 2010 census, the population was 48,946. Its name derives from a Delaware Indian word, applied by settlers of Western New York State to a trail that followed the Allegheny River. Its county seat is...
: Allegany is a variant spelling of the Allegheny RiverAllegheny RiverThe Allegheny River is a principal tributary of the Ohio River; it is located in the Eastern United States. The Allegheny River joins with the Monongahela River to form the Ohio River at the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania...
. - Alleghany County, North CarolinaAlleghany County, North Carolina-Major highways:* U.S. Highway 21* U.S. Highway 221* North Carolina Highway 18* North Carolina Highway 88* North Carolina Highway 93* North Carolina Highway 113-Demographics:...
: Alleghany is a corruption of the Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
Delaware tribe's word for the Allegheny RiverAllegheny RiverThe Allegheny River is a principal tributary of the Ohio River; it is located in the Eastern United States. The Allegheny River joins with the Monongahela River to form the Ohio River at the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania...
, which is said to have meant a fine stream. - Allegheny County, PennsylvaniaAllegheny County, PennsylvaniaAllegheny County is a county in the southwestern part of the U.S. state of Pennsylvania. As of the 2010 census, the population was 1,223,348; making it the second most populous county in Pennsylvania, following Philadelphia County. The county seat is Pittsburgh...
: Allegheny is a corruption of the Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
Delaware tribe's word for the Allegheny RiverAllegheny RiverThe Allegheny River is a principal tributary of the Ohio River; it is located in the Eastern United States. The Allegheny River joins with the Monongahela River to form the Ohio River at the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania...
, which is said to have meant a fine stream. - Appomattox County, VirginiaAppomattox County, VirginiaAppomattox County is a county located in the Commonwealth of Virginia. As of 2010, the population was 14,973. Its county seat is Appomattox. For a long time, Appomattox was a prohibition or dry county...
: Appomattox is named for the Appomattox RiverAppomattox RiverThe Appomattox River is a tributary of the James River, approximately long, in central and eastern Virginia in the United States, named for the Appomattocs Indian tribe who lived along its lower banks in the 17th century...
, which is in turn named for the Appamatucks Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
people. - Ashtabula County, OhioAshtabula County, OhioAshtabula County is the northeasternmost county in the state of Ohio. As of 2010, the population was 101,497, its county seat is Jefferson. The county is named for a Native American word meaning "river of many fish"....
: Ashtabula was named for the Ashtabula RiverAshtabula RiverThe Ashtabula River is a river located northeast of Cleveland in Ohio. The river flows into Lake Erie at the city of Ashtabula, Ohio. It is 40 mi in length and drains 137 mi² .-Name:...
. - Asotin County, Washington: Asotin is named for the Nez PercéNez Perce languageNez Perce , also spelled Nez Percé, is a Sahaptian language related to the several dialects of Sahaptin . The Sahaptian sub-family is one of the branches of the Plateau Penutian family...
name for Eel Creek. - Auglaize County, OhioAuglaize County, OhioAs of the census of 2000, there were 46,611 people, 17,376 households, and 12,771 families residing in the county. The population density was 116 people per square mile . There were 18,470 housing units at an average density of 46 per square mile...
: Auglaize is named for the Auglaize RiverAuglaize RiverThe Auglaize River is a tributary of the Maumee River in northwestern Ohio in the United States. It drains a primarily rural farming area in the watershed of Lake Erie. The name of the river either comes from a Shawnee phrase meaning "fallen timbers" or a French term for "frozen water."It rises in...
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- Beaver County, OklahomaBeaver County, OklahomaBeaver County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 5,636. The county seat is Beaver....
: Beaver is named for its county seatCounty seatA county seat is an administrative center, or seat of government, for a county or civil parish. The term is primarily used in the United States....
of Beaver, OklahomaBeaver, OklahomaBeaver is a town in and the county seat of Beaver County, Oklahoma, United States. As of the 2010 census, the city population was 1,515. The town is host to the annual World Cow Chip Throwing Championship.-History:...
and the Beaver RiverBeaver River (Oklahoma)The Beaver River is the historic name for an intermittent river in Oklahoma that drains most of the Oklahoma Panhandle. It is also known as the North Canadian River. Both names are in common use. By one convention the headwaters of the Beaver River are at the convergence of the Corrumpa, Rafael,...
, which flows through the county. - Benzie County, MichiganBenzie County, Michigan-Demographics:As of the 2000 census, there were 15,998 people, 6,500 households, and 4,595 families residing in the county. The population density was 50 people per square mile . There were 10,312 housing units at an average density of 32 per square mile...
is an Americanization of the FrenchFrench languageFrench is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...
name, Riviere Aux-Bec-Scies, for the local river. - Blanco County, TexasBlanco County, TexasBlanco County is a county located on the Edwards Plateau in the U.S. state of Texas. As of 2010, the population is 10,497. Its county seat is Johnson City. Blanco is named for the Blanco River which traverses the county. The State of Texas formed Blanco County in 1858 from portions of Burnet,...
: Blanco is named for the Blanco River. Blanco means white in the Spanish languageSpanish languageSpanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...
. - Boise County, IdahoBoise County, IdahoBoise County is a rural mountain county in the U.S. state of Idaho. The population was 6,670 at the 2000 census; it was estimated at 7,571 in 2007...
: Boise is named after the Boise RiverBoise RiverThe Boise River is a tributary of the Snake River in the northwestern United States. It drains a rugged portion of the Sawtooth Range in southwestern Idaho northeast of Boise, as well as part of the western Snake River Plain...
. Boise is FrenchFrench languageFrench is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...
for "timber". - Bosque County, TexasBosque County, TexasBosque County is a county located on the Edwards Plateau in the U.S. state of Texas. As of 2000, the population is 17,204. Its county seat is Meridian. Clifton, however, is the largest city and the cultural/financial center of the county. Bosque is named for the Bosque River, which runs through...
: Bosque is named for the Bosque RiverBosque RiverThe Bosque River is a long river in Central Texas fed by four primary branches. The longest branch, the North Bosque, forms near Stephenville, and flows toward Waco through Hamilton, Bosque and McLennan counties. It is subsequently joined by the East Bosque in Bosque County and the Middle and...
. - Brazoria County, TexasBrazoria County, TexasBrazoria County[p] is a county in the U.S. state of Texas, located on the Gulf Coast within the Houston–Sugar Land–Baytown metropolitan area. Regionally, parts of the county are within the extreme southern-most fringe of the regions locally known as Southeast Texas. Brazoria County is among a...
: Brazoria is named for the Brazos RiverBrazos RiverThe Brazos River, called the Rio de los Brazos de Dios by early Spanish explorers , is the longest river in Texas and the 11th longest river in the United States at from its source at the head of Blackwater Draw, Curry County, New Mexico to its mouth at the Gulf of Mexico with a drainage...
. - Brazos County, TexasBrazos County, TexasBrazos County is a county located in the U.S. state of Texas in the Central Texas region. In 2010, its population was 194,851. The county seat is Bryan and it is part of the Bryan-College Station metropolitan area. Brazos is named for the Brazos River, along with Brazoria...
: Brazos is named for the Brazos RiverBrazos RiverThe Brazos River, called the Rio de los Brazos de Dios by early Spanish explorers , is the longest river in Texas and the 11th longest river in the United States at from its source at the head of Blackwater Draw, Curry County, New Mexico to its mouth at the Gulf of Mexico with a drainage...
. - Buffalo County, WisconsinBuffalo County, WisconsinBuffalo County is a county located in the U.S. state of Wisconsin. As of 2000, the population was 13,804. Its county seat is Alma.-Geography:According to the U.S...
: Buffalo is named for the Buffalo RiverBuffalo River (Wisconsin)The Buffalo River is a tributary of the Mississippi River, 45 mi long, in western Wisconsin in the United States.-Course:The Buffalo River is formed at Osseo in northeastern Trempealeau County by the confluence of its North and South Forks, both of which are about 10 mi long and rise in...
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- Canadian County, OklahomaCanadian County, OklahomaCanadian County is a county located in the U.S. state of Oklahoma. As of 2010, the population was 115,541. Its county seat is El Reno. Canadian County is also part of the Oklahoma City Metropolitan Statistical Area. Canadian County is named for the Canadian River.-Geography:According to the U.S...
: Canadian County is named for the Canadian RiverCanadian RiverThe Canadian River is the longest tributary of the Arkansas River. It is about long, starting in Colorado and traveling through New Mexico, the Texas Panhandle, and most of Oklahoma....
, which flows through the county. - Cassia County, IdahoCassia County, IdahoCassia County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 22,952. The county seat and largest city is Burley.-History:...
: Cassia is named after Cassia Creek. - Cedar County, IowaCedar County, Iowa-2010 census:The 2010 census recorded a population of 13,956 in the county, with a population density of . There were 8,064 housing units, of which 7,511 were occupied.-2000 census:...
: Cedar is named for the Cedar River. - Chariton County, MissouriChariton County, MissouriChariton County is a county located in the U.S. state of Missouri. As of 2000, the population was 8,438. Its county seat is Keytesville. The county was organized in 1820 from part of Howard County and was named from the Chariton River.-History:...
: Chariton is named from the Chariton RiverChariton RiverThe Chariton River is a tributary to the Missouri River in southeast Iowa and northeast Missouri.It has been called Missouri's "Grand Divide" because streams west of the Chariton flow into the Missouri and streams east of it flow into the Mississippi River....
. - Chattahoochee County, GeorgiaChattahoochee County, GeorgiaChattahoochee County is a county located in the U.S. state of Georgia. It was created on February 13, 1854. The 2000 Census reported a population of 14,882. The 2009 Census Estimate shows a population of 14,402. It is part of the Columbus, Georgia-Alabama Metropolitan Statistical Area...
: Chattahoochee is named for the Chattahoochee RiverChattahoochee RiverThe Chattahoochee River flows through or along the borders of the U.S. states of Georgia, Alabama, and Florida. It is a tributary of the Apalachicola River, a relatively short river formed by the confluence of the Chattahoochee and Flint Rivers and emptying into Apalachicola Bay in the Gulf of...
of Georgia, which also forms part of the Alabama-Georgia state line. - Chattooga County, GeorgiaChattooga County, GeorgiaChattooga County is a county located in the U.S. state of Georgia. It was created on December 28, 1838. As of 2000, the population was 25,470. The 2007 Census Estimate shows a population of 26,797. The county seat is Summerville.-Geography:...
: Chattooga is named for the Chattooga RiverChattooga RiverThe Chattooga River is the main tributary of the Tugaloo River. Its headwaters are located southwest of Cashiers, North Carolina, and it stretches to where it has its confluence with the Tallulah River within Lake Tugalo, held back by the Tugalo Dam...
in northeast Georgia. - Cheboygan County, MichiganCheboygan County, Michigan-Commercial Airline:There are no commercial airline airports in Cheboygan County but the nearest ones are Alpena County Regional Airport, Chippewa County International Airport , and Cherry Capital Airport...
is named for the Cheboygan RiverCheboygan RiverThe Cheboygan River is a short but significant river in the Lake Huron drainage basin of the U.S. state of Michigan. in length, the Cheboygan River flows from the north end of Mullett Lake at to the Straits of Mackinac at . The river forms the boundary between Benton Township and Inverness...
, which was itself a Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
name. - Chippewa County, MinnesotaChippewa County, MinnesotaAs of the census of 2000, there were 13,088 people, 5,361 households, and 3,597 families residing in the county. The population density was 22 people per square mile . There were 5,855 housing units at an average density of 10 per square mile...
is named after the Chippewa RiverChippewa River (Minnesota)The Chippewa River is a tributary of the Minnesota River, about 120 mi long, in western and southwestern Minnesota in the United States...
, which flows through the county. - Clear Creek County, ColoradoClear Creek County, ColoradoClear Creek County is one of the 64 counties of the state of Colorado of the United States. The county population was 9,322 at U.S. Census 2000. The county seat is Georgetown...
: Clear Creek is named for Clear CreekClear Creek (Colorado)Clear Creek is a tributary of the South Platte River, approximately long, in north central Colorado in the United States. The creek flows through Clear Creek Canyon in the Rocky Mountains directly west of Denver, descending through a long gorge to emerge on the Colorado Eastern Plains where it...
, which runs through the county. - Clearwater County, IdahoClearwater County, IdahoClearwater County is a county located in the U.S. state of Idaho. Established in 1911, the county was named after the Clearwater River. As of the 2000 Census the county had a population of 8,930 . The county seat is Orofino....
: Clearwater is named after the Clearwater RiverClearwater River (Idaho)The Clearwater River is a river in north central Idaho, which flows westward from the Bitterroot Mountains along the Idaho-Montana border, and joins the Snake River at Lewiston. In October 1805, the Lewis and Clark Expedition descended the Clearwater River in dugout canoes, putting in at "Canoe...
. - Clearwater County, MinnesotaClearwater County, MinnesotaAs of the census of 2000, there were 8,423 people, 3,330 households, and 2,287 families residing in the county. The population density was 8 people per square mile . There were 4,114 housing units at an average density of 4 per square mile...
is named after the Clearwater River and Clearwater LakeClearwater Lake-Lakes:Canada*Clearwater Lake *Clearwater Lakes, the English name of the Lac à l'Eau Claire, a pair of impact craters in northern QuébecUnited States*Clearwater Lake , a lake and campsite in the Ocala National Forest, Florida...
, which are both located within the county. - Colorado County, Texas: Colorado is named for the Colorado RiverColorado RiverThe Colorado River , is a river in the Southwestern United States and northwestern Mexico, approximately long, draining a part of the arid regions on the western slope of the Rocky Mountains. The watershed of the Colorado River covers in parts of seven U.S. states and two Mexican states...
. - Columbia County, OregonColumbia County, OregonColumbia County is a county located in the U.S. state of Oregon. It was named for the Columbia River, which forms its eastern and northern borders. As of 2010, its population was 49,351. The county seat is St. Helens.-Economy:...
: Named for the Columbia RiverColumbia RiverThe Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada, flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state...
which it borders. - Columbia County, Washington: Columbia is named for the Columbia RiverColumbia RiverThe Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada, flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state...
. - Coosa County, AlabamaCoosa County, AlabamaCoosa County is a county of the U.S. state of Alabama. Its name derives from a town of the Creek tribe. As of 2010 the population was 11,539, but since that time it has lost the most population by percentage of any Alabama county...
: Named for the Coosa River of Alabama & Georgia - Cottonwood County, MinnesotaCottonwood County, MinnesotaCottonwood County is a county located in the U.S. state of Minnesota. As of 2010, the population was 11,687. Its county seat is Windom.-History:...
is named after the Cottonwood RiverCottonwood River (Minnesota)The Cottonwood River is a tributary of the Minnesota River, 152 miles long, in southwestern Minnesota in the United States. Via the Minnesota River, it is part of the watershed of the Mississippi River, draining an area of in an agricultural region...
, which flows through the county. - Costilla County, ColoradoCostilla County, ColoradoCostilla County is the ninth least populous of the 64 counties in the state of Colorado of the United States. The county population was 3,663 at U.S. Census 2000. The county seat is San Luis, the oldest town in Colorado.- History :...
: Costilla is named for the Costilla River. - Cuyahoga County, OhioCuyahoga County, OhioCuyahoga County is a county located in the state of Ohio, United States. It is the most populous county in Ohio; as of the 2010 census, the population was 1,280,122. Its county seat is Cleveland. Cuyahoga County is part of Greater Cleveland, a metropolitan area, and Northeast Ohio, a...
: Cuyahoga is named for the Cuyahoga RiverCuyahoga RiverThe Cuyahoga River is located in Northeast Ohio in the United States. Outside of Ohio, the river is most famous for being "the river that caught fire", helping to spur the environmental movement in the late 1960s...
. - Conecuh County, AlabamaConecuh County, Alabama-2010:Whereas according to the 2010 U.S. Census Bureau:*51.3% White*46.5% Black*0.3% Native American*0.1% Asian*0.0% Native Hawaiian or Pacific Islander*1.0% Two or more races*1.2% Hispanic or Latino -2000:...
: Conecuh is named for the Conecuh RiverConecuh RiverThe Conecuh River and Escambia River constitute a single river in Alabama and Florida in the United States.The Conecuh River rises near Union Springs in the state and flows in a general southwesterly direction into Florida near Century. The river's name changes from the Conecuh to the Escambia at...
in southern Alabama.
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- Des Moines County, IowaDes Moines County, Iowa-2010 census:The 2010 census recorded a population of 40,325 in the county, with a population density of . There were 18,535 housing units, of which 17,003 were occupied.-2000 census:...
: Des Moines is named for the Des Moines RiverDes Moines RiverThe Des Moines River is a tributary river of the Mississippi River, approximately long to its farther headwaters, in the upper Midwestern United States...
. - Deschutes County, OregonDeschutes County, Oregon-National protected areas:* Deschutes National Forest * Newberry National Volcanic Monument-Demographics:As of the census of 2000, there were 115,367 people, 45,595 households, and 31,962 families residing in the county. The population density was 38 people per square mile . There were 54,583...
: Deschutes is named for the Deschutes River. - Dolores County, ColoradoDolores County, ColoradoDolores County is the seventh least populous of the 64 counties of the State of Colorado of the United States. The county population was 1,844 at U.S. Census 2000. The county seat is Dove Creek.- History :...
: Dolores is named for the Dolores RiverDolores RiverThe Dolores River is a tributary of the Colorado River, approximately 250 mi long, in the U.S. states of Colorado and Utah....
, originally Rio de Nuestra Senora de los Dolores, or, in EnglishEnglish languageEnglish is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
, "River of our Lady of Sorrows". - DuPage County, IllinoisDuPage County, IllinoisAs of the 2010 Census, the population of the county was 916,924, White Americans made up 77.9% of Dupage County's population; non-Hispanic whites represented 70.5% of the population. Black Americans made up 4.6% of the population. Native Americans made up 0.3% of Dupage County's population...
is named after the DuPage RiverDuPage RiverThe DuPage River is a tributary of the Des Plaines River in the U.S. state of Illinois.-Course:The river begins as two individual streams. The West Branch of the DuPage River, long, starts in Schaumburg at Campanelli Park in Cook County and continues southward through the entire county of DuPage,...
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- Eagle County, ColoradoEagle County, ColoradoEagle County is the thirteenth most populous of the 64 counties of the State of Colorado in the United States. The county is named for the Eagle River. The county population was 41,659 at U.S. Census 2000. The county seat is the Town of Eagle...
: Eagle is named for the Eagle RiverEagle River (Colorado)The Eagle River is a tributary of the Colorado River, approximately long, in west central Colorado in the United States.It rises in southeastern Eagle County, at the continental divide, and flows northwest past Gilman, Minturn, Avon...
. - Elk County, KansasElk County, KansasElk County is a county located in Southeast Kansas, in the Central United States. As of the 2010 census, the county population was 2,882...
: Elk is named for the Elk RiverElk River (Kansas)The Elk River is a tributary of the Verdigris River in southeastern Kansas in the United States. Via the Verdigris and Arkansas rivers, it is part of the Mississippi River watershed.-Description and course:...
. - Escambia County, FloridaEscambia County, FloridaEscambia County is the westernmost county in the U.S. state of Florida. The 2010 population was 297,619. The U.S. Census Bureau 2005 estimate for the county is 296,772. Its county seat is Pensacola.- History :...
: Escambia is named for the Escambia River. - Escambia County, AlabamaEscambia County, Alabama-2010:Whereas according to the 2010 U.S. Census Bureau:*62.1% White*31.9% Black*4.4% Native American*0.2% Asian*0.0% Native Hawaiian or Pacific Islander*1.5% Two or more races*1.9% Hispanic or Latino -2000:...
: Escambia, AL is also named for the Escambia River.
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- Gila County, ArizonaGila County, Arizona-2010:Whereas according to the 2010 U.S. Census Bureau:*76.8% White*0.4% Black*14.8% Native American*0.5% Asian*0.1% Native Hawaiian or Pacific Islander*2.0% Two or more races*5.4% Other races*17.9% Hispanic or Latino -2000:...
: Gila is named for the Gila RiverGila RiverThe Gila River is a tributary of the Colorado River, 650 miles long, in the southwestern states of New Mexico and Arizona.-Description:...
. - Grand County, ColoradoGrand County, ColoradoGrand County is the 21st largest of the 64 counties of the State of Colorado of the United States. The county population was 12,442 at U.S. Census 2000...
: Grand is named for the Grand River, later renamed the Colorado River. - Grand County, UtahGrand County, UtahGrand County is a county located in the U.S. state of Utah. As of 2000 the population was 8,485, and by 2005 had been estimated at 8,743. It was named for the Colorado River, which at the time of statehood was known as the Grand River. Its county seat and largest city is Moab.-Geography:According...
: Grand is named for the Grand River, later renamed the Colorado River. - Greenbrier County, West VirginiaGreenbrier County, West VirginiaAs of the census of 2000, there were 34,453 people, 14,571 households, and 9,922 families residing in the county. The population density was 34 people per square mile . There were 17,644 housing units at an average density of 17 per square mile...
: Greenbrier is named for the Greenbrier RiverGreenbrier RiverThe Greenbrier River is a tributary of the New River, long, in southeastern West Virginia, USA. Via the New, Kanawha and Ohio Rivers, it is part of the watershed of the Mississippi River, draining an area of...
.
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- Hillsborough County, FloridaHillsborough County, FloridaAs of the census of 2000, there were 998,948 people, 391,357 households, and 255,164 families residing in the county. The population density was 951 people per square mile . There were 425,962 housing units at an average density of 405 per square mile...
: Hillsborough is named for the Hillsborough River (Florida)Hillsborough River (Florida)The Hillsborough River is a river located in the state of Florida in the USA. It arises in the Green Swamp near the juncture of Hillsborough, Pasco and Polk counties, and flows through Pasco and Hillsborough Counties to an outlet in the city of Tampa on Tampa Bay. The name Hillsborough River first...
, which in turn is named after Wills Hill, Viscount HillsboroughWills Hill, 1st Marquess of DownshireWills Hill, 1st Marquess of Downshire PC , known as the Viscount Hillsborough from 1742 to 1751 and as the Earl of Hillsborough from 1751 to 1789, was a British politician of the Georgian era...
, a BritishGreat BritainGreat Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...
politician during the period of the American Revolutionary WarAmerican Revolutionary WarThe American Revolutionary War , the American War of Independence, or simply the Revolutionary War, began as a war between the Kingdom of Great Britain and thirteen British colonies in North America, and ended in a global war between several European great powers.The war was the result of the...
who ordered the mapping of the river's course. - Hocking County, OhioHocking County, OhioHocking County is a county located in the state of Ohio, United States. As of 2010, the population was 29,380. Its county seat is Logan. Its name is from the Hocking River, the origins of which are disputed but is said to be a Delaware Indian word meaning "bottle river".-Geography:According to the...
: Hocking is named for the Hocking RiverHocking RiverThe Hocking River is a tributary of the Ohio River in southeastern Ohio in the United States.The Hocking flows mostly on the unglaciated Allegheny Plateau, but its headwaters are in a glaciated region...
. - Hood River County, OregonHood River County, Oregon-Demographics:As of the census of 2000, there were 20,411 people, 7,248 households, and 5,175 families residing in the county. The population density was 39 people per square mile . There were 7,818 housing units at an average density of 15 per square mile...
: Named for the Hood River, a river in the county. - Humboldt County, NevadaHumboldt County, NevadaHumboldt County is a county located in the U.S. state of Nevada. As of 2007, the population was estimated to be 18,052. Its county seat is Winnemucca.The county was the site of an arrest in 2000 that led to the U.S. Supreme Court decision Hiibel v...
: Humboldt is named for the Humboldt RiverHumboldt RiverThe Humboldt River runs through northern Nevada in the western United States. At approximately long it is the second longest river in the Great Basin, after the Bear River. It has no outlet to the ocean, but instead empties into the Humboldt Sink...
, named in turn for Friedrich Heinrich Alexander von HumboldtAlexander von HumboldtFriedrich Wilhelm Heinrich Alexander Freiherr von Humboldt was a German naturalist and explorer, and the younger brother of the Prussian minister, philosopher and linguist Wilhelm von Humboldt...
, the famous German scientist, explorer and statesman.
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- Indian River County, FloridaIndian River County, FloridaIndian River County is a county located in the Treasure Coast region in the U.S. state of Florida. As of 2000, the population was 112,947. The U.S. Census Bureau 2005 estimate for the county is 128,594...
: Indian River is named for the Indian RiverIndian River (Florida)The Indian River is a waterway in Florida, a part of the Indian River Lagoon system which forms the Atlantic Intracoastal Waterway. It extends southward from the Ponce de Leon inlet in New Smyrna Beach, Florida [Volusia County] southward and across the "Haulover Canal" and along the western shore...
, not a real river, but a long, narrow saltwater lagoonLagoonA lagoon is a body of shallow sea water or brackish water separated from the sea by some form of barrier. The EU's habitat directive defines lagoons as "expanses of shallow coastal salt water, of varying salinity or water volume, wholly or partially separated from the sea by sand banks or shingle,...
between the mainland and the barrier islandBarrier islandBarrier islands, a coastal landform and a type of barrier system, are relatively narrow strips of sand that parallel the mainland coast. They usually occur in chains, consisting of anything from a few islands to more than a dozen...
s that extends above and below the county. - Iowa County, IowaIowa County, Iowa-2010 census:The 2010 census recorded a population of 16,355 in the county, with a population density of . There were 7,258 housing units, of which 6,677 were occupied.-2000 census:...
: Iowa is named for the Iowa RiverIowa RiverThe Iowa River is a tributary of the Mississippi River in the state of Iowa in the United States. It is about long and is open to small river craft to Iowa City, about from its mouth...
and the IowaIowa tribeThe Iowa , also known as the Báxoje, are a Native American Siouan people. Today they are enrolled in either of two federally recognized tribes, the Iowa Tribe of Oklahoma and the Ioway Tribe of Kansas and Nebraska....
Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
tribe.
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- Kalamazoo County, MichiganKalamazoo County, Michigan-Air Service:*The Kalamazoo & Battle Creek Metro Area is served by Kalamazoo/Battle Creek International Airport.-Interstates:* I-94* I-94 Business Loop-US highways:* US-131* BUS US 131-Michigan State Trunklines:* M-43* M-89* M-96...
is named for the Kalamazoo RiverKalamazoo RiverThe Kalamazoo River is a river in the U.S. state of Michigan. The river is long from the junction of its North and South branches to its mouth at Lake Michigan, with a total length extending to when one includes the South Branch...
. Kalamazoo is an Anglicized Native American word which probably meant boiling water. - Kankakee County, IllinoisKankakee County, IllinoisKankakee County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 113,449, which is an increase of 9.3% from 103,833 in 2000. Its county seat is Kankakee....
: Kankakee is named after the Kankakee RiverKankakee RiverThe Kankakee River is a tributary of the Illinois River, approximately long, in northwestern Indiana and northeastern Illinois in the United States. At one time the river drained one of the largest wetlands in North America and furnished a significant portage between the Great Lakes and the...
. - Kanabec County, Minnesota: Kanabec is named after the Snake RiverSnake RiverThe Snake is a major river of the greater Pacific Northwest in the United States. At long, it is the largest tributary of the Columbia River, the largest North American river that empties into the Pacific Ocean...
, which flows through the area. Kanabec is OjibwaOjibwe languageOjibwe , also called Anishinaabemowin, is an indigenous language of the Algonquian language family. Ojibwe is characterized by a series of dialects that have local names and frequently local writing systems...
for snake. - Kanawha County, West VirginiaKanawha County, West VirginiaAs of the census of 2000, there were 200,073 people, 86,226 households, and 55,960 families residing in the county. The population density was 222 people per square mile . There were 93,788 housing units at an average density of 104 per square mile...
: Kanawha is named for the Kanawha RiverKanawha RiverThe Kanawha River is a tributary of the Ohio River, approximately 97 mi long, in the U.S. state of West Virginia. The largest inland waterway in West Virginia, it has formed a significant industrial region of the state since the middle of the 19th century.It is formed at the town of Gauley...
. - Kennebec County, MaineKennebec County, MaineKennebec County is a county located in the U.S. state of Maine. In 2010, its population was 122,151. Its county seat is Augusta. The center of population of Maine is located in Kennebec County, in the city of Augusta....
: Kennebec is named for the Kennebec RiverKennebec RiverThe Kennebec River is a river that is entirely within the U.S. state of Maine. It rises in Moosehead Lake in west-central Maine. The East and West Outlets join at Indian Pond and the river then flows southward...
. - Kern County, CaliforniaKern County, CaliforniaSpreading across the southern end of the California Central Valley, Kern County is the fifth-largest county by population in California. Its economy is heavily linked to agriculture and to petroleum extraction, and there is a strong aviation and space presence. Politically, it has generally...
: Kern is named after the Kern RiverKern RiverThe Kern River is a river in the U.S. state of California, approximately long. It drains an area of the southern Sierra Nevada mountains northeast of Bakersfield. Fed by snowmelt near Mount Whitney, the river passes through scenic canyons in the mountains and is a popular destination for...
, which is named in turn for Edward M. Kern, a topographerTopographyTopography is the study of Earth's surface shape and features or those ofplanets, moons, and asteroids...
who accompanied John C. FrémontJohn C. FrémontJohn Charles Frémont , was an American military officer, explorer, and the first candidate of the anti-slavery Republican Party for the office of President of the United States. During the 1840s, that era's penny press accorded Frémont the sobriquet The Pathfinder...
on an early expedition through the state. - Keya Paha County, NebraskaKeya Paha County, Nebraska-Demographics:As of the census of 2000, there were 983 people, 409 households, and 292 families residing in the county. The population density was 1 people per square mile . There were 548 housing units at an average density of 1 per square mile . The racial makeup of the county was 99.39%...
: Keya Paha is named for the DakotaLakota languageLakota is a Siouan language spoken by the Lakota people of the Sioux tribes. While generally taught and considered by speakers as a separate language, Lakota is mutually understandable with the other two languages , and is considered by most linguists one of the three major varieties of the Sioux...
words Ké-ya Pa-há Wa-kpá, which, translated, mean Turtle Hill River. - Kings County, CaliforniaKings County, CaliforniaKings County is a county located in the Central Valley of the U.S. state of California. It is located in a rich agricultural region. Kings County is also home to NAS Lemoore, which is the U.S. Navy's newest and largest master jet air station. The county seat is Hanford...
: Kings is named for the Kings RiverKings River (California)The Kings River is a major river of south-central California. About long, it drains an area of the high western Sierra Nevada and the Central Valley. A large alluvial fan has formed where the river's gradient decreases in the Central Valley so the river divides into distributaries...
. - Koochiching County, MinnesotaKoochiching County, MinnesotaKoochiching County is a county located in the U.S. state of Minnesota. As of 2010, the population was 13,311. Its county seat is International Falls. A portion of the Bois Forte Indian Reservation is in the county. A small part of Voyageurs National Park extends into its northeast...
is named after a CreeCreeThe Cree are one of the largest groups of First Nations / Native Americans in North America, with 200,000 members living in Canada. In Canada, the major proportion of Cree live north and west of Lake Superior, in Ontario, Manitoba, Saskatchewan, Alberta and the Northwest Territories, although...
word of uncertain meaning given by OjibwaOjibwaThe Ojibwe or Chippewa are among the largest groups of Native Americans–First Nations north of Mexico. They are divided between Canada and the United States. In Canada, they are the third-largest population among First Nations, surpassed only by Cree and Inuit...
s to Rainy River.
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- Las Animas County, ColoradoLas Animas County, ColoradoLas Animas County has the largest area of the 64 counties of the State of Colorado of the United States. Las Animas County takes its name from the Mexican Spanish name of the Purgatoire River, originally called El Río de las Ánimas Perdidas en Purgatorio, which means "River of the Lost Souls in...
: Las Animas is named for the Las Animas River, originally El Rio de las Animas Perdidas en Purgatorio, or, in EnglishEnglish languageEnglish is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
, "River of the Souls Lost in Purgatory". - Latah County, IdahoLatah County, IdahoLatah County is a county located in the north central region of the U.S. state of Idaho. The population was 37,244 at the 2010 census. The county seat and largest city is Moscow, which is the home of the University of Idaho, the state's flagship and land-grant university...
: Latah is named after Latah CreekLatah CreekLatah Creek, also known as Hangman Creek, is a large stream in eastern Washington and north central Idaho in the United States. The creek flows northwest from the Rocky Mountains to Spokane, where it empties into the Spokane River...
. - Lehigh County, PennsylvaniaLehigh County, Pennsylvania-Climate:Most of the county's climate is considered to fall in the humid continental climate zone. Summers are typically hot and muggy, fall and spring are generally mild, and winter is cold. Precipitation is almost uniformly distributed throughout the year....
: Leigh is named after the Lehigh RiverLehigh RiverThe Lehigh River, a tributary of the Delaware River, is a river located in eastern Pennsylvania, in the United States. Part of the Lehigh, along with a number of its tributaries, is designated a Pennsylvania Scenic River by the state's Department of Conservation and Natural Resources...
; a tributary of the Delaware RiverDelaware RiverThe Delaware River is a major river on the Atlantic coast of the United States.A Dutch expedition led by Henry Hudson in 1609 first mapped the river. The river was christened the South River in the New Netherland colony that followed, in contrast to the North River, as the Hudson River was then...
. - Limestone County, AlabamaLimestone County, AlabamaLimestone County is a county of the U.S. state of Alabama, and is included in the Huntsville Metropolitan Area.It is also included in the merged Huntsville-Decatur Metro Area. Its name comes from Limestone Creek, a local stream. In 2000, the population was 65,676. As of 2010 the county's...
: Limestone is named for Limestone Creek, which runs through the county and has a bed of limestoneLimestoneLimestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
. - Little River County, ArkansasLittle River County, ArkansasLittle River County is a county located in the U.S. state of Arkansas. As of 2010, the population was 13,171. The county seat is Ashdown. Little River County is Arkansas's 59th county, formed from Sevier County on March 5, 1867, and named for the Little River...
: Little River is named for the Little RiverLittle River (Red River)The Little River is a tributary of the Red River, about long, in southeastern Oklahoma and southwestern Arkansas in the United States. Via the Red, it is part of the watershed of the Mississippi River.-Course:...
. - Loup County, NebraskaLoup County, Nebraska-Demographics:As of the census of 2010, there were 632 people, 289 households, and 206 families residing in the county. The population density was 1 people per square mile . There were 377 housing units at an average density of 1 per square mile...
: Loup is named for the Loup RiverLoup RiverThe Loup River is a tributary of the Platte River, approximately long, in central Nebraska in the United States. The river drains a sparsely populated rural agricultural area on the eastern edge of the Great Plains southeast of the Sandhills...
.
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- Mahoning County, Ohio: Mahoning is named for the Mahoning RiverMahoning RiverThe Mahoning River is a river located in eastern Ohio and western Pennsylvania. It joins the Shenango River to form the Beaver River and is part of the Ohio River watershed.- Physical properties :...
. - Malheur County, OregonMalheur County, OregonMalheur County is a county located in the southeast corner of the U.S. state of Oregon. It is included in the eight-county definition of Eastern Oregon. Most of the county observes the Mountain Time Zone, although the southern quarter of the county observes the Pacific Time Zone along with the...
: Malheur is named for the Malheur RiverMalheur RiverThe Malheur River is a tributary of the Snake River in eastern Oregon in the United States. It drains a high desert area, between the Harney Basin and the Blue Mountains and the Snake....
. - Manistee County, MichiganManistee County, Michigan-Demographics:As of the census of 2000, there were 24,527 people, 9,860 households, and 6,714 families residing in the county. The population density was 45 people per square mile . There were 14,272 housing units at an average density of 26 per square mile...
was named for the Manistee RiverManistee RiverThe Manistee River in the U.S. state of Michigan, runs approximately 232 miles through the northern Lower Peninsula, through the villages of Sharon, Smithville, Mesick, and enters Lake Michigan at Manistee. It is considered, like the nearby Au Sable River, to be one of the best trout fisheries east...
, which in turn had Native American name meaning river at whose mouth there are islands. - Maries County, Missouri: Maries is named from the Maries River.
- Merrimack County, New HampshireMerrimack County, New Hampshire-Demographics:As of the census of 2000, there were 136,225 people, 51,843 households, and 35,460 families residing in the county. The population density was 146 people per square mile . There were 56,244 housing units at an average density of 60 per square mile...
: Merrimack is named for the Merrimack RiverMerrimack RiverThe Merrimack River is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into Massachusetts, and then flows northeast until it empties into the Atlantic Ocean at Newburyport...
. - Mississippi County, MissouriMississippi County, MissouriMississippi County is a county located in the Bootheel of Southeast Missouri in the United States. As of the 2000 U.S. Census, the county's population was 13,427. A 2008 estimate, however, showed the population to be 13,504. The largest city and county seat is Charleston...
: Mississippi is named after the Mississippi RiverMississippi RiverThe Mississippi River is the largest river system in North America. Flowing entirely in the United States, this river rises in western Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains...
. - Moniteau County, Missouri: Montineau is named after Moniteau Creek.
- Monongalia County, West VirginiaMonongalia County, West VirginiaAs of the census of 2000, there were 81,866 people, 33,446 households, and 18,495 families residing in the county. The population density was 227 people per square mile . There were 36,695 housing units at an average density of 102 per square mile...
: Monongalia is named for the Monongahela RiverMonongahela RiverThe Monongahela River is a river on the Allegheny Plateau in north-central West Virginia and southwestern Pennsylvania in the United States...
. - Muskegon County, MichiganMuskegon County, Michigan-Demographics:As of the census of 2000, there were 170,200 people, 63,330 households, and 44,267 families residing in the county. The population density was 334 people per square mile . There were 68,556 housing units at an average density of 135 per square mile...
is named for the Muskegon RiverMuskegon RiverThe Muskegon River is a river in the western portion of the lower peninsula of the U.S. state of Michigan. The river has its headwaters in Houghton Lake in Roscommon County, flowing out of the North Bay into neighboring Missaukee County. From there it flows mostly southwest to Muskegon, Michigan,...
, named for the Ojibwa languageOjibwe languageOjibwe , also called Anishinaabemowin, is an indigenous language of the Algonquian language family. Ojibwe is characterized by a series of dialects that have local names and frequently local writing systems...
word meaning swamp or marsh. - Musselshell County, MontanaMusselshell County, Montana-Demographics:As of the census of 2000, there are 4,497 people, 1,878 households, and 1,235 families residing in the county. The population density is 2 people per square mile . There are 2,317 housing units at an average density of -Demographics:...
: Musselshell is named for the Musselshell RiverMusselshell RiverThe Musselshell River is a tributary of the Missouri River, long from its origins at the confluence of its North and South Forks near Martinsdale, Montana to its mouth on the Missouri River. It is located east of the Continental divide entirely within Montana in the United States...
, named in turn by the Lewis and Clark ExpeditionLewis and Clark ExpeditionThe Lewis and Clark Expedition, or ″Corps of Discovery Expedition" was the first transcontinental expedition to the Pacific Coast by the United States. Commissioned by President Thomas Jefferson and led by two Virginia-born veterans of Indian wars in the Ohio Valley, Meriwether Lewis and William...
presumably due to musselMusselThe common name mussel is used for members of several families of clams or bivalvia mollusca, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.The...
s found on its banks.
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- Nemaha County, KansasNemaha County, KansasNemaha County is a county located in the northeastern part of the U.S. state of Kansas. As of the 2010 census, the county population was 10,178. The county seat is Seneca.- History :...
: Nemaha is named for the Nemaha River. - Nemaha County, NebraskaNemaha County, Nebraska-Demographics:As of the census of 2000, there were 7,576 people, 3,047 households, and 1,980 families residing in the county. The population density was 18 people per square mile . There were 3,439 housing units at an average density of 8 per square mile...
: Nemaha is named for Nimaha, the OtoOtoe tribeThe Otoe or Oto are a Native American people. The Otoe language, Chiwere, is part of the Siouan family and closely related to that of the related Iowa and Missouri tribes.-History:...
name meaning miry water for a stream which crossed the county and emptied into the Missouri RiverMissouri RiverThe Missouri River flows through the central United States, and is a tributary of the Mississippi River. It is the longest river in North America and drains the third largest area, though only the thirteenth largest by discharge. The Missouri's watershed encompasses most of the American Great...
. - Neosho County, KansasNeosho County, KansasNeosho County is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 16,512...
: Neosho is named for the Neosho RiverNeosho RiverThe Neosho River is a tributary of the Arkansas River in eastern Kansas and northeastern Oklahoma in the United States. Its tributaries also drain portions of Missouri and Arkansas. The river is about long. Via the Arkansas, it is part of the Mississippi River watershed.- Course :The Neosho's...
. - Niobrara County, Wyoming: Niobrara is named for the Niobrara RiverNiobrara RiverThe Niobrara River is a tributary of the Missouri River, approximately long, running through the U.S. states of Wyoming and Nebraska. The river drains one of the most arid sections of the Great Plains, and has a low flow for a river of its length...
. Niobrara is OmahaOmaha (tribe)The Omaha are a federally recognized Native American nation which lives on the Omaha Reservation in northeastern Nebraska and western Iowa, United States...
for flat or broad river. - Nodaway County, MissouriNodaway County, MissouriNodaway County is a county located in the U.S. state of Missouri. The county was organized in 1845 and named for the Nodaway River.As of 2010, the population was 23,370...
: Nodaway is named from the Nodaway RiverNodaway RiverThe Nodaway River is a river in southwest Iowa and northwest Missouri.-Etymology:The river's name first appears in the journal of Lewis and Clark, who camped at the mouth of the river on July 8, 1804, but who provide no derivation of the name. There exist several proposed etymologies...
. Nodaway is a PotawatomiPotawatomiThe Potawatomi are a Native American people of the upper Mississippi River region. They traditionally speak the Potawatomi language, a member of the Algonquian family. In the Potawatomi language, they generally call themselves Bodéwadmi, a name that means "keepers of the fire" and that was applied...
word meaning placid.
O
- Oconee County, GeorgiaOconee County, GeorgiaOconee County is a county located in the U.S. state of Georgia. It was created on February 25, 1875. As of the 2000 census, the population was 26,225. Census estimates for 2007 show a population of 31,367...
: Oconee is named for the Oconee RiverOconee RiverThe Oconee River is a river which has its origin in Hall County, Georgia, and terminates where it joins the Ocmulgee River to form the Altamaha River near Lumber City at the borders of Montgomery County, Wheeler County, and Jeff Davis County. South of Athens, two forks, known as the North Oconee...
that forms part of the county's border - Ohio County, IndianaOhio County, IndianaAs of the census of 2000, there were 5,623 people, 2,201 households, and 1,586 families residing in the county. The population density was 65 people per square mile . There were 2,424 housing units at an average density of 28 per square mile...
: Ohio is named for the Ohio RiverOhio RiverThe Ohio River is the largest tributary, by volume, of the Mississippi River. At the confluence, the Ohio is even bigger than the Mississippi and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream...
. - Ohio County, KentuckyOhio County, KentuckyOhio County is a county located in the U.S. state of Kentucky. As of 2000, the population was 22,916. Its county seat is Hartford. The county is named for the Ohio River, which originally formed its northern boundary. It is a dry county, which means that the sale of alcohol is restricted or...
: Also named for the Ohio River. When the county was formed, the river formed its northern boundary, but no longer does after several new counties were carved from it. - Ohio County, West VirginiaOhio County, West VirginiaAs of the census of 2000, there were 47,427 people, 19,733 households, and 12,155 families residing in the county. The population density was 447 people per square mile . There were 22,166 housing units at an average density of 209 per square mile...
: Also named for the Ohio River. - Ontonagon County, MichiganOntonagon County, Michigan-National protected areas:* Keweenaw National Historical Park * Ottawa National Forest -Demographics:As of the census of 2000, there were 7,818 people, 3,456 households, and 2,225 families residing in the county. The population density was 6 people per square mile . There were 5,404 housing units...
is named for a river called Nantounagon on an early FrenchFranceThe French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
map. - Otter Tail County, MinnesotaOtter Tail County, MinnesotaOtter Tail County is a county located in the U.S. state of Minnesota. As of 2010, the population was 57,303. Its county seat is Fergus Falls.-History:...
: Otter Tail is named after Otter Tail LakeOtter Tail LakeOtter Tail Lake is a lake in the west-central part of the U.S. state of Minnesota and is the largest lake in Otter Tail County.- Geography :Adjoining the city of Ottertail, it is a part of the Otter Tail River chain of lakes. Upstream from the lake are Big Pine, Little Pine and Rush lakes, while...
and Otter Tail RiverOtter Tail RiverThe Otter Tail River is a river in the west-central portion of the U.S. state of Minnesota. It begins in Clearwater County, southwest of Bemidji...
. The river was named by the OjibwaOjibwaThe Ojibwe or Chippewa are among the largest groups of Native Americans–First Nations north of Mexico. They are divided between Canada and the United States. In Canada, they are the third-largest population among First Nations, surpassed only by Cree and Inuit...
for its long sandbar shaped like an otterOtterThe Otters are twelve species of semi-aquatic mammals which feed on fish and shellfish, and also other invertebrates, amphibians, birds and small mammals....
's tail. - Osage County, KansasOsage County, KansasOsage County is a county located in east-central Kansas, in the Central United States. As of the 2010 census, the county population was 16295. Its county seat is Lyndon, and its most populous city is Osage City. The county along with Shawnee, Jackson, Jefferson, and Wabaunsee counties is...
: Osage is named for the Osage RiverOsage RiverThe Osage River is a tributary of the Missouri River in central Missouri in the United States. The Osage River is one of the larger rivers in Missouri. The river drains a mostly rural area of . The watershed includes an area of east-central Kansas and a large portion of west-central and central...
. - Oswego County, New YorkOswego County, New YorkOswego County is a county located in the U.S. state of New York. As of the 2010 Census, the estimated population was 122,109. The City of Oswego and the Village of Pulaski serve as the dual county seats in a two shire system of government...
: Oswego is named for the Oswego RiverOswego River (New York)The Oswego River is a river in upstate New York in the United States. This river is the second-largest river flowing into Lake Ontario. James Fenimore Cooper’s novel The Pathfinder, or The Inland Sea is set in the Oswego River valley...
. - Ouachita County, Arkansas: Ouachita is named for the Ouachita RiverOuachita RiverThe Ouachita River is a river that runs south and east through the U.S. states of Arkansas and Louisiana, joining the Tensas River to form the Black River near Jonesville, Louisiana.-Course:...
. - Ouachita Parish, LouisianaOuachita Parish, Louisiana-National protected areas:* Black Bayou Lake National Wildlife Refuge* D'Arbonne National Wildlife Refuge -Demographics:As of the census of 2000, there were 147,250 people, 55,216 households, and 38,319 families residing in the parish. The population density was 241 people per square mile...
: named for the Ouachita RiverOuachita RiverThe Ouachita River is a river that runs south and east through the U.S. states of Arkansas and Louisiana, joining the Tensas River to form the Black River near Jonesville, Louisiana.-Course:...
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- Payette County, IdahoPayette County, IdahoPayette County is a county located in the U.S. state of Idaho. The county was established in 1917, and at the 2000 Census the county had a population of 20,578 . The county seat is Payette....
: Payette is named after the Payette RiverPayette RiverThe Payette River is an river in southwestern Idaho and is a major tributary of the Snake River.Its headwaters originate in the Sawtooth and Salmon River Mountains at elevations over...
, which, in turn, is named for explorer Francois PayetteFrancois PayetteFrancois Payette was a fur trader. Born near Montreal, he began his career as a canoeman, was hired by John Jacob Astor and shipped to the Oregon Country aboard the Beaver, entering the mouth of the Columbia River on May 9, 1812...
. - Pearl River County, MississippiPearl River County, Mississippi-National protected areas:*Bogue Chitto National Wildlife Refuge *De Soto National Forest -Demographics:The census estimates of 2006 place the county population over 57,000 and place it among the 10 fastest growing counties in the U.S. As of the census of 2000, there were 48,621 people, 18,078...
: Named for the Pearl River, obviously - Platte County, NebraskaPlatte County, Nebraska-Demographics:As of the census of 2000, there were 31,662 people, 12,076 households, and 8,465 families residing in the county. The population density was 47 people per square mile . There were 12,916 housing units at an average density of 19 per square mile...
: Platte is named for the Platte RiverPlatte RiverThe Platte River is a major river in the state of Nebraska and is about long. Measured to its farthest source via its tributary the North Platte River, it flows for over . The Platte River is a tributary of the Missouri River, which in turn is a tributary of the Mississippi River which flows to...
. - Platte County, Wyoming: Platte is named for the North Platte RiverNorth Platte RiverThe North Platte River is a major tributary of the Platte River and is approximately long counting its many curves, It travels about distance. Its course lies in the U.S...
. Platte is FrenchFrench languageFrench is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...
for flat. - Plumas County, CaliforniaPlumas County, CaliforniaPlumas County is a county located in the Sierra Nevada of the U.S. state of California. The county gets its name from the Spanish words for the Feather River , which flows through the county. As of the 2010 census, the population 20,007, down from 20,824 at the 2000 census...
: Plumas is named for Spanish name for the Feather RiverFeather RiverThe Feather River is the principal tributary of the Sacramento River, in the Sacramento Valley of Northern California. The river's main stem is about long. Its length to its most distant headwater tributary is about . Its drainage basin is about...
(Rio de las Plumas), which flows through the county. - Powder River County, MontanaPowder River County, Montana-Demographics:As of the census of 2000, there were 1,858 people, 737 households, and 524 families residing in the county. The population density was -Demographics:...
: Powder River is named for the Powder RiverPowder River (Montana)Powder River is a tributary of the Yellowstone River, approximately long in the southeastern Montana and northeastern Wyoming in the United States. It drains an area historically known as the Powder River Country on the high plains east of the Bighorn Mountains.It rises in three forks in eastern...
, which in turn was named for gunpowderGunpowderGunpowder, also known since in the late 19th century as black powder, was the first chemical explosive and the only one known until the mid 1800s. It is a mixture of sulfur, charcoal, and potassium nitrate - with the sulfur and charcoal acting as fuels, while the saltpeter works as an oxidizer...
-like sand along its banks.
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- Racine County, Wisconsin: Racine is named for the Root RiverRoot River (Wisconsin)The Root River is a river that flows to Lake Michigan at the city of Racine in southeastern Wisconsin in the United States. Racine and Racine County are named for the river, as racine is the French word for root.-Course:...
, racine being the FrenchFrench languageFrench is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...
word for root. - Rappahannock County, VirginiaRappahannock County, VirginiaAs of the census of 2010, there were 7,373 people, 2,788 households, and 2,004 families residing in the county. The population density was 26 people per square mile . There were 3,303 housing units at an average density of 12 per square mile...
: Rappahannock is named for the Rappahannock RiverRappahannock RiverThe Rappahannock River is a river in eastern Virginia, in the United States, approximately in length. It traverses the entire northern part of the state, from the Blue Ridge Mountains in the west, across the Piedmont, to the Chesapeake Bay, south of the Potomac River.An important river in American...
, named in turn for the RappahannockRappahannock TribeThe Rappahannock are one of the eleven state-recognized Native American tribes in Virginia. They are made up of descendants of several small Algonquian-speaking tribes who merged in the 17th century.-17th century:...
Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
people. - Red Lake County, Minnesota: Red Lake County is named after the Red Lake RiverRed Lake RiverThe Red Lake River is a river located in northwestern Minnesota. The river begins on the western side of the Lower Red Lake and flows westward. After passing through Thief River Falls, Red Lake Falls, and Crookston, the river merges with the Red River of the North in East Grand Forks. The total...
, named by the OjibwaOjibwaThe Ojibwe or Chippewa are among the largest groups of Native Americans–First Nations north of Mexico. They are divided between Canada and the United States. In Canada, they are the third-largest population among First Nations, surpassed only by Cree and Inuit...
for its reddish sand and water. - Red River County, Texas: Red River is named for the Red RiverRed River (Mississippi watershed)The Red River, or sometimes the Red River of the South, is a major tributary of the Mississippi and Atchafalaya Rivers in the southern United States of America. The river gains its name from the red-bed country of its watershed. It is one of several rivers with that name...
. - Red River Parish, LouisianaRed River Parish, LouisianaRed River Parish is a parish located in the U.S. state of Louisiana. Its seat is Coushatta. It was one of the newer parishes created in 1871 by the state legislature under Reconstruction...
: named for the Red RiverRed River (Mississippi watershed)The Red River, or sometimes the Red River of the South, is a major tributary of the Mississippi and Atchafalaya Rivers in the southern United States of America. The river gains its name from the red-bed country of its watershed. It is one of several rivers with that name... - Redwood County, MinnesotaRedwood County, MinnesotaAs of the census of 2000, there were 16,815 people, 6,674 households, and 4,524 families residing in the county. The population density was 19 people per square mile . There were 7,230 housing units at an average density of 8 per square mile...
: Redwood County is named after the Redwood RiverRedwood RiverThe Redwood River is a tributary of the Minnesota River, 127 miles long, in southwestern Minnesota in the United States. Via the Minnesota River, it is part of the watershed of the Mississippi River, draining an area of 705 square miles in an agricultural region...
, which flows through the county. - Republic County, KansasRepublic County, KansasRepublic County is a county located in the state of Kansas. As of the 2010 census, the county population was 4,980. The largest city and county seat is Belleville.-19th century:...
: Republic is named for the Republican RiverRepublican RiverThe Republican River is a river in the central Great Plains of North America, flowing through the U.S. states of Nebraska and Kansas.-Geography:...
, which in turn was named for the Pawnee Republic which once existed near the river. - Rio Arriba County, New MexicoRio Arriba County, New Mexico-2010:Whereas according to the 2010 U.S. Census Bureau:*51.6% White*0.5% Black*16.0% Native American*0.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.3% Two or more races*28.2% Other races*71.3% Hispanic or Latino -2000:...
: Rio Arriba is named for its location on the upper Rio GrandeRio GrandeThe Rio Grande is a river that flows from southwestern Colorado in the United States to the Gulf of Mexico. Along the way it forms part of the Mexico – United States border. Its length varies as its course changes...
. (Rio Arriba is "upper river" in SpanishSpanish languageSpanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...
.) - Rio Blanco County, ColoradoRio Blanco County, ColoradoRio Blanco County is the sixth most extensive of the 64 counties of the State of Colorado of the United States. The county population was 5,986 at U.S. Census 2000. The name of the county is the Spanish language name for the White River which runs through it...
: Rio Blanco is named for Rio Blanco, or, in EnglishEnglish languageEnglish is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
, the White RiverWhite River (Utah)The White River is a tributary of the Green River, approximately long, in the U.S. states of Colorado and Utah. Flows vary from 450 ft³/s late summers in dry years to well over 12,000 ft³/s in spring....
. - Rio Grande County, ColoradoRio Grande County, ColoradoRio Grande County is one of the 64 counties of the State of Colorado of the United States. The county is named for the Rio Grande , which flows through the county. The county population was 12,413 at U.S. Census 2000...
: Rio Grande is named for the Rio GrandeRio GrandeThe Rio Grande is a river that flows from southwestern Colorado in the United States to the Gulf of Mexico. Along the way it forms part of the Mexico – United States border. Its length varies as its course changes...
, which runs through the county. - Rock County, WisconsinRock County, Wisconsin-Unincorporated communities:-Further reading:* . Chicago: Western Historical Company, 1879.* Brown, William F. , Chicago: Cooper, 1908.* Brown, William F. , Chicago: Cooper, 1908....
: Rock is named for the Rock River. - Roseau County, MinnesotaRoseau County, MinnesotaRoseau County is a county located in the state of Minnesota, United States. As of 2010, the population was 15,629. Its county seat is Roseau.-Geography:...
: Roseau County is named after the Roseau Lake and Roseau RiverRoseau River (Manitoba)The Roseau River is a tributary of the Red River of the North, in southern Manitoba in Canada and northwestern Minnesota in the United States. Via the Red River, Lake Winnipeg and the Nelson River, it is part of the watershed of Hudson Bay....
. - Rosebud County, MontanaRosebud County, Montana-Demographics:As of the census of 2000, there were 9,383 people, 3,307 households, and 2,417 families residing in the county. The population density was 2 people per square mile . There were 3,912 housing units at an average density of 1 per square mile...
: Rosebud is named for the Rosebud RiverRosebud RiverRosebud River is a river in Alberta, Canada. It is a major tributary of the Red Deer River. The river passes through agricultural lands and ranchland for most of its course, and through badlands in its final reaches...
, which was named for the many wild roseWild RoseWild Rose is the name given to certain flowering shrubs:*Genus Rosa:** Rosa acicularis, or Wild Rose, a rose species which occurs in Asia, Europe, and North America...
s along the banks of the river.
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- Sacramento County, CaliforniaSacramento County, CaliforniaSacramento County is a county in the U.S. state of California. Its county seat is Sacramento, which is also the state capital. As of 2010 the county had a population of 1,418,788....
: Sacramento is named for the Sacramento RiverSacramento RiverThe Sacramento River is an important watercourse of Northern and Central California in the United States. The largest river in California, it rises on the eastern slopes of the Klamath Mountains, and after a journey south of over , empties into Suisun Bay, an arm of the San Francisco Bay, and...
. - Saline County, KansasSaline County, KansasSaline County is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 55,606...
: Saline is named for the Saline RiverSaline River (Kansas)The Saline River is a tributary of the Smoky Hill River in the central Great Plains of North America. The entire length of the river lies in the U.S. state of Kansas. The river takes its name from the French translation of its Native name Ne Miskua, referring to its salty content.-Geography:The...
. - San Benito County, CaliforniaSan Benito County, CaliforniaSan Benito County is a county located in the Coast Range Mountains of the U.S. state of California, south of San Jose. As of 2010 the population was 55,269. The county seat is Hollister, which includes nearly two-thirds of the county's population. El Camino Real passes through the county and...
: San Benito is named for San Benito Creek. - San Juan County, ColoradoSan Juan County, ColoradoSan Juan County is the least populous of the 64 counties of the state of Colorado in the United States. The county name is the Spanish language name for “Saint John”, the name Spanish explorers gave to a river and the mountain range in the area. The county population was 558 at U.S. Census 2000...
: San Juan is named for the San Juan River and San Juan MountainsSan Juan MountainsThe San Juan Mountains are a high and rugged mountain range in the Rocky Mountains in southwestern Colorado. The area is highly mineralized and figured in the gold and silver mining industry of early Colorado. Major towns, all old mining camps, include Creede, Lake City, Silverton, Ouray, and...
. - San Juan County, New MexicoSan Juan County, New Mexico-2010:Whereas according to the 2010 U.S. Census Bureau:*51.6% White*0.6% Black*36.6% Native American*0.4% Asian*0.1% Native Hawaiian or Pacific Islander*3.5% Two or more races*7.2% Other races*19.1% Hispanic or Latino -2000:...
: San Juan is named for the San Juan River. - San Miguel County, ColoradoSan Miguel County, ColoradoSan Miguel County is one of the 64 counties of the state of Colorado of the United States. The county is named for the San Miguel River. The county population was 6,594 at U.S. Census 2000...
: San Miguel is named for the San Miguel RiverSan Miguel River (Colorado)The San Miguel River is a tributary of the Dolores River, approximately 90 mi long in southwestern Colorado in the United States...
. - Santa Cruz County, ArizonaSanta Cruz County, Arizona-2010:Whereas according to the 2010 U.S. Census Bureau:*73.5% White*0.4% Black*0.7% Native American*0.5% Asian*0.0% Native Hawaiian or Pacific Islander*2.0% Two or more races*22.9% Other races*82.8% Hispanic or Latino -2000:...
: Santa Cruz is named after the Santa Cruz River. - Sangamon County, IllinoisSangamon County, IllinoisSangamon County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 197,465, which is an increase of 4.5% from 188,951 in 2000...
is named after the Sangamon RiverSangamon RiverThe Sangamon River is a principal tributary of the Illinois River, approximately long, in central Illinois in the United States. It drains a mostly rural agricultural area between Peoria and Springfield...
. - Scioto County, OhioScioto County, OhioAs of the census of 2000, there were 79,195 people, 30,871 households, and 21,362 families residing in the county. The population density was 129 people per square mile . There were 34,054 housing units at an average density of 56 per square mile...
: Scioto is named for the Scioto RiverScioto RiverThe Scioto River is a river in central and southern Ohio more than 231 miles in length. It rises in Auglaize County in west central Ohio, flows through Columbus, Ohio, where it collects its largest tributary, the Olentangy River, and meets the Ohio River at Portsmouth...
. - Sevier County, UtahSevier County, UtahAs of the census of 2000, there were 18,842 people, 6,081 households, and 4,907 families residing in the county. The population density was 10 people per square mile . There were 7,016 housing units at an average density of 4 per square mile...
: Sevier is named for the Sevier RiverSevier RiverThe Sevier River , extending , is the longest Utah river entirely in the state and drains an extended chain of mountain farming valleys to the intermittent Sevier Lake...
. - Shenandoah County, VirginiaShenandoah County, VirginiaAs of the census of 2000, there were 35,075 people, 14,296 households, and 10,064 families residing in the county. The population density was 68 people per square mile . There were 16,709 housing units at an average density of 33 per square mile...
: Shenandoah is named for the Shenandoah RiverShenandoah RiverThe Shenandoah River is a tributary of the Potomac River, long with two forks approximately long each, in the U.S. states of Virginia and West Virginia...
; Shenandoah is a Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
term meaning beautiful daughter of the stars. - Shiawassee County, MichiganShiawassee County, Michigan-Transportation:-Demographics:As of the census of 2000, there were 71,687 people, 26,896 households, and 19,849 families residing in the county. The population density was 133 people per square mile . There were 29,087 housing units at an average density of 54 per square mile...
: Shiawassee is named for the Shiawassee RiverShiawassee RiverThe Shiawassee River in the U.S. state of Michigan is long and generally flows in a northerly direction. It merges together with the Flint River, the Cass River and the Tittabawassee River to form the Saginaw River, which drains into the Saginaw Bay of Lake Huron.-Description:Supporting...
. - St. Francis County, Arkansas: St. Francis is named for the St. Francis RiverSt. Francis RiverThe Saint Francis River is a tributary of the Mississippi River, about long, in southeastern Missouri and northeastern Arkansas in the United States...
. - St. Johns County, FloridaSt. Johns County, FloridaSt. Johns County is a county located in northeastern Florida. As of the 2010 census, the population was 190,039. The county seat is St. Augustine. Due to the inclusion of Ponte Vedra Beach, it is one of the highest-income counties in the United States....
: St. Johns is named for the St. Johns RiverSt. Johns RiverThe St. Johns River is the longest river in the U.S. state of Florida and its most significant for commercial and recreational use. At long, it winds through or borders twelve counties, three of which are the state's largest. The drop in elevation from the headwaters to the mouth is less than ;...
. - St. Joseph County, IndianaSt. Joseph County, IndianaAs of the census of 2000, there were 265,559 people, 100,743 households, and 66,792 families residing in the county. The population density was 581 people per square mile . There were 107,013 housing units at an average density of 234 per square mile...
: St. Joseph is named for the St. Joseph RiverSt. Joseph River (Lake Michigan)The St. Joseph River is a river, approximately long, in southern Michigan and northern Indiana in the United States. It drains a primarily rural farming area in the watershed of Lake Michigan...
. - St. Joseph County, MichiganSt. Joseph County, Michigan-Demographics:As of the census of 2000, there were 62,422 people, 23,381 households, and 16,600 families residing in the county. The population density was 124 people per square mile . There were 26,503 housing units at an average density of 53 per square mile...
: St. Joseph is named for the St. Joseph RiverSt. Joseph River (Lake Michigan)The St. Joseph River is a river, approximately long, in southern Michigan and northern Indiana in the United States. It drains a primarily rural farming area in the watershed of Lake Michigan... - St. Lawrence County, New YorkSt. Lawrence County, New YorkSt. Lawrence County is a county located in the U.S. state of New York. As of the 2010 census, the population was 111,944. The county seat is Canton. The county is named for the Saint Lawrence River, which in turn was named for the Catholic saint on whose Feast day the river was discovered by...
: St. Lawrence is named for the St. Lawrence River. - St. Louis County, MinnesotaSt. Louis County, MinnesotaSt. Louis County is a county located in the U.S. state of Minnesota. As of 2010, the population was 200,226. Its county seat is Duluth. It is the largest county by total area in Minnesota, and the second largest in the United States east of the Mississippi River; in land area alone, after Aroostook...
: St. Louis is named after the St. Louis RiverSaint Louis RiverThe St. Louis River is a river in the U.S. states of Minnesota and Wisconsin that flows into Lake Superior. The largest U.S. river to flow into the lake, it is 179 miles in length and starts near Hoyt Lakes, Minnesota. The river's watershed is in area...
. - Stillwater County, MontanaStillwater County, Montana-National protected areas:*Custer National Forest *Hailstone National Wildlife Refuge*Halfbreed Lake National Wildlife Refuge-Demographics:...
: Stillwater is named for the Stillwater River, named for its very slow current. - Suwannee County, FloridaSuwannee County, FloridaSuwannee County is a county located in the state of Florida. As of 2000, the population was 34,844. The U.S. Census Bureau 2005 estimate for the county was 38,624 . Its county seat is Live Oak, Florida. Suwannee County was a dry county until August, 2011.....
: Suwannee is named for the Suwannee RiverSuwannee RiverThe Suwannee River is a major river of southern Georgia and northern Florida in the United States. It is a wild blackwater river, about long. The Suwannee River is the site of the prehistoric Suwannee Straits which separated peninsular Florida from the panhandle.-Geography:The river rises in the...
, the same river made famous by Stephen FosterStephen FosterStephen Collins Foster , known as the "father of American music", was the pre-eminent songwriter in the United States of the 19th century...
in his song Old Folks at HomeOld Folks at Home"Old Folks at Home" is a minstrel song written by Stephen Foster in 1851. It was intended to be performed by the New York blackface troupe Christy's Minstrels. E. P. Christy, the troupe's leader, appears on early printings of the sheet music as the song's creator...
. - Sweetwater County, Wyoming: Sweetwater is named for the Sweetwater RiverSweetwater River (Wyoming)The Sweetwater River is a tributary of the North Platte River, long, in the U.S. state of Wyoming. Its waters eventually reach the Atlantic Ocean. The Sweetwater rises in southwestern Fremont County, at the continental divide near South Pass Wyoming, on the southern end of the Wind River Range...
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- Tallapoosa County, AlabamaTallapoosa County, AlabamaTallapoosa County is a county of the U.S. state of Alabama. The name Tallapoosa is of Creek origin, and many Indian villages were along the banks of the lower river before the 19th century. As of 2010, the population was 41,616...
: Tallapoosa is named for the Tallapoosa RiverTallapoosa RiverThe Tallapoosa River runs from the southern end of the Appalachian Mountains in Georgia, in the United States, southward and westward into Alabama. It is formed by the confluence of McClendon Creek and Mud Creek in Paulding County, Georgia. Lake Martin at Alexander City, Alabama is a large and...
. Tallapoosa is believed to be a ChoctawChoctawThe Choctaw are a Native American people originally from the Southeastern United States...
word meaning pulverized rock. - Tangipahoa Parish, LouisianaTangipahoa Parish, LouisianaTangipahoa Parish is a parish located in the U.S. state of Louisiana, one of the Florida Parishes. The parish seat is Amite City, but the major city is Hammond. As of 2006, the population was 113,137...
: named for the Tangipahoa RiverTangipahoa RiverThe Tangipahoa River originates northwest of McComb in southwest Mississippi, and runs south through Lake Tangipahoa in Percy Quin State Park before passing into southeast Louisiana. Its mouth opens into the northwest region of Lake Pontchartrain.... - Tensas Parish, LouisianaTensas Parish, LouisianaTensas Parish is a parish located in the U.S. state of Louisiana. The seat of the parish is St. Joseph. In 2010, the population of Tensas Parish was 5,252; it is the least-populous of all sixty-four parishes....
: named for the Tensas RiverTensas RiverThe Tensas River is a river in Louisiana in the United States. The river, known as Tensas Bayou in its upper reaches, begins in East Carroll Parish in the northeast corner of the state and runs roughly southwest for more or less in parallel with the Mississippi River... - Tippecanoe County, IndianaTippecanoe County, IndianaTippecanoe County is a county located in the northwest quadrant of the U.S. state of Indiana. It was created in 1826 from Wabash County. It is part of the Lafayette, Indiana, Metropolitan Statistical Area....
: Tippecanoe is named for the Tippecanoe RiverTippecanoe RiverThe Tippecanoe River is a gentle, river in northern Indiana that flows from Big Lake in Noble County to the Wabash River near Battle Ground, about northeast of Lafayette. The name "Tippecanoe" comes from a Miami-Illinois word for buffalo fish, reconstructed as */kiteepihkwana/.The Tippecanoe...
and the Battle of TippecanoeBattle of TippecanoeThe Battle of Tippecanoe was fought on November 7, 1811, between United States forces led by Governor William Henry Harrison of the Indiana Territory and Native American warriors associated with the Shawnee leader Tecumseh. Tecumseh and his brother Tenskwatawa were leaders of a confederacy of...
. - Tuscaloosa County, AlabamaTuscaloosa County, AlabamaTuscaloosa County is a county of the U.S. state of Alabama.It is named in honor of the pre-Choctaw chief Tuskaloosa. In 2010, the population was 194,656...
: Tuscaloosa was a Native AmericanNative Americans in the United StatesNative Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...
name for the Black Warrior RiverBlack Warrior RiverThe Black Warrior River is a waterway in west central Alabama in the southeastern United States. The river rises in the extreme southern edges of the Appalachian Highlands and flows 178 miles to the Tombigbee River, of which the Black Warrior is the primary tributary...
. - Tuscarawas County, OhioTuscarawas County, OhioTuscarawas County is a county located in the eastern part of the state of Ohio. As of the 2010 census, the population was 92,582. Its county seat is New Philadelphia...
: Tuscarawas is named for the Tuscarawas RiverTuscarawas RiverThe Tuscarawas River is a principal tributary of the Muskingum River, 129.9 miles long, in northeastern Ohio in the United States...
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- Vermilion County, IllinoisVermilion County, IllinoisVermilion County is a county located in the eastern part of the U.S. state of Illinois, between the Indiana border and Champaign County. It was established in 1826 and was the 45th of Illinois' 102 counties...
: Vermilion is named for both the Vermilion RiverVermilion River (Illinois River tributary)The Vermilion River is a tributary of the Illinois River in the state of Illinois, United States. The river flows north, in contrast to a second Vermilion River in Illinois, which flows south to the Wabash River...
and the Little Vermilion RiverLittle Vermilion River (Illinois River tributary)The Little Vermilion River is a tributary of the Illinois River, which it joins near LaSalle, Illinois, opposite the north-flowing Vermilion River. There is another "Little Vermilion River" in Illinois which is a tributary of the Wabash River.-External links:...
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- Wabash County, IndianaWabash County, IndianaAs of the census of 2000, there were 34,960 people, 13,215 households, and 9,395 families residing in the county. The population density was 85 people per square mile . There were 14,034 housing units at an average density of 34 per square mile...
: Wabash is named for the Wabash RiverWabash RiverThe Wabash River is a river in the Midwestern United States that flows southwest from northwest Ohio near Fort Recovery across northern Indiana to southern Illinois, where it forms the Illinois-Indiana border before draining into the Ohio River, of which it is the largest northern tributary...
. - Wabash County, IllinoisWabash County, IllinoisWabash County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 11,947, which is a decrease of 7.7% from 12,937 in 2000...
: Wabash is named for the Wabash RiverWabash RiverThe Wabash River is a river in the Midwestern United States that flows southwest from northwest Ohio near Fort Recovery across northern Indiana to southern Illinois, where it forms the Illinois-Indiana border before draining into the Ohio River, of which it is the largest northern tributary...
. - Wicomico County, MarylandWicomico County, MarylandAs of the census of 2010, there were 98,733 people, 37,220 households, and 24,172 families residing in the county. The population density was 261.7 people per square mile . There were 41,192 housing units at an average density of 109.2 per square mile...
: Wicomico is named for the Wicomico RiverWicomico River (Maryland eastern shore)The Wicomico River is a tributary of the Chesapeake Bay on the eastern shore of Maryland. It drains an area of low marshlands and farming country in the middle Delmarva Peninsula. The name "Wicomico" derives from the words wicko mekee, meaning "a place where houses are built," apparently...
. In LenapeLenapeThe Lenape are an Algonquian group of Native Americans of the Northeastern Woodlands. They are also called Delaware Indians. As a result of the American Revolutionary War and later Indian removals from the eastern United States, today the main groups live in Canada, where they are enrolled in the...
, wicko mekee indicated a place where houses are built, possibly in reference to a settlement.
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- Yamhill County, OregonYamhill County, Oregon-National protected areas:*Siuslaw National Forest *Tualatin River National Wildlife Refuge -Demographics:As of the census of 2000, there were 84,992 people, 28,732 households, and 21,376 families residing in the county. The population density was 119 people per square mile . There were 30,270...
: Yamhill is named after the Yamhill RiverYamhill RiverThe Yamhill River is an tributary of the Willamette River, in the U.S. state of Oregon. Formed by the confluence of the South Yamhill River and the North Yamhill River about east of McMinnville, it drains part of the Northern Oregon Coast Range...
. - Yellow Medicine County, MinnesotaYellow Medicine County, Minnesota-External links:***...
: Yellow Medicine County is named after the Yellow Medicine RiverYellow Medicine RiverThe Yellow Medicine River is a tributary of the Minnesota River, 107 miles long, in southwestern Minnesota in the United States. Via the Minnesota River, it is part of the watershed of the Mississippi River, draining an area of 665 square miles in an agricultural region...
, which flows through the county.