Alameda County

Alameda County, California

Alameda County is a county in the U.S. state of California. It occupies most of the East Bay region of the San Francisco Bay Area. As of the 2010 census it had a population of 1,510,271, making it the 7th most populous county in the state...

• Alvarado Guard, Company F, 5th Infantry Regiment, 2nd Brigade, Alvarado
  Alvarado, California
  Alvarado is a former settlement in and former county seat of Alameda County, California, now annexed to Union City. It was located north-northwest of downtown Newark....
  
  , 1863–1866
• Brooklyn Guard, Unattached Company, 2nd Brigade. San Leandro, 1865–1866
• Hayward Guard, Unattached Company, 2nd Brigade. Hayward
  Hayward, California
  Hayward is a city located in the East Bay in Alameda County, California. With a population of 144,186, Hayward is the sixth largest city in the San Francisco Bay Area and the third largest in Alameda County. Hayward was ranked as the 37th most populous municipality in California. It is included in...
  
  , 1864–1868
• Jackson Guard, Unattached Company, 2nd Brigade. Oakland, 1865–1866
• Oakland Home Guard, Oakland, (1861–1863)
  • Oakland Guard, Company C, 1st Infantry Battalion, 2nd Brigade. Oakland, (1863–1866)

Alpine County

Alpine County, California

Alpine County is the smallest county, by population, in the U.S. state of California. As of 2010, it had a population of 1,175, all rural. There are no incorporated cities in the county. The county seat is Markleeville...

 

• Markleville Guard, changed to Alpine Rifles, Unattached Company, 4th Brigade. Markleville
  Markleeville, California
  Markleeville is a census-designated place and the county seat of Alpine County, California. The population was 210 at the 2010 census, up from 197 at the 2000 census.The CDP of Markleeville also includes Woodfords....
  
  , 1864–1866

Amador County

Amador County, California

Amador County is a county located in the Sierra Nevada of the U.S. state of California. As of the 2010 census, the population was 38,091. The county seat is Jackson.Amador County bills itself as "The Heart of the Mother Lode" and lies within the Gold Country...

• Amador Hussars, Unattached Company, 4th Brigade. Jackson
  Jackson, California
  Jackson is the county seat of Amador County, California. The population was 4,651 at the 2010 census, up from 3,989 at the 2000 census...
  
  , 1861–1862
• Amador Mountaineers, Jackson 1861, became Company C, 1st Regiment California Volunteer Infantry
  1st California Infantry
  The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.-History:...
  
  
• Ione City Guard, Unattached Company, 4th Brigade. Ione
  Ione, California
  Ione is a city in Amador County, California, United States. The population was 7,918 at the 2010 census, up from 7,129 at the 2000 census. Once known as "Bed-Bug" and "Freeze Out," Ione was an important supply center on the main road to the Mother Lode and Southern Mines during the California Gold...
  
   1863-1866
• Jackson Guard, Unattached Company, 4th Brigade. Jackson 1863-1866
• Sutter Creek Volunteers, Unattached Company, 4th Brigade. Sutter Creek
  Sutter Creek, California
  Sutter Creek is a city in Amador County, California, United States. The population was 2,501 at the 2010 census, up from 2,303 at the 2000 census...
  
   1861-1862
• Sutter Creek Guard, Unattached Company C, 4th Brigade. Sutter Creek, 1864–1866
• Volcano Blues, Company C, 4th Infantry Regiment, 4th Brigade. Volcano
  Volcano, California
  Volcano is a census-designated place in Amador County, California. It lies at an elevation of 2070 feet . The population was 115 at the 2010 census. It is located at , just north of Pine Grove. The town is registered as California Historical Landmark #29...
  
   1861-1866
• Volcano Guard, Volcano, 1858-1861

Butte County

Butte County, California

Butte County is a county located in the Central Valley of the US state of California, north of the state capital of Sacramento. As of the 2010 census, it had a population of 220,000. The county seat is Oroville. Butte County is the "Land of Natural Wealth and Beauty."Butte County is watered by the...

• Bangor Guard, Unattached Company, 5th Brigade. Bangor
  Bangor, California
  Bangor is a census-designated place inside Butte County, California, about from the Yuba County line. The U.S. Geological Survey feature ID for the community is 218644, and for the census place is 2612459; and the elevation is given as above mean sea level . The community is in a shallow valley...
  
  , 1864–1866
• Butte County Dragoons, Oroville
  Oroville, California
  Oroville is the county seat of Butte County, California. The population was 15,506 at the 2010 census, up from 13,004 at the 2000 census...
  
   1861
• Butte Mounted Rifles, Oroville, 1861
  • Chico Light Infantry, Chico
    Chico, California
    Chico is the most populous city in Butte County, California, United States. The population was 86,187 at the 2010 census, up from 59,954 at the time of the 2000 census...
    
    , 1863–1866
• California Volunteers, Oroville, 1861 became part of 1st Regiment California Volunteer Infantry
  1st California Infantry
  The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.-History:...
  
  
• Oroville Guard, Oroville, 1856–1857, 1861-1868

Calaveras County

Calaveras County, California

Calaveras County is a county located in the Gold Country of the U.S. state of California. Calaveras is the Spanish word for skulls; the county was reportedly named for the remains of Native Americans discovered by the Spanish explorer Captain Gabriel Moraga. As of the 2010 census, the county had a...

• Angels Guard, Company H, 3rd Infantry Regiment, 3rd Brigade. Angel's Camp, 1862–1868
• Mokelumne Hill Rifles, Unattached Company, 3rd Brigade. Mokelumne Hill, 1863–1866
• Union Guard, Company C, 2nd Battalion, 3rd Brigade. Poverty Bar, 1861–1866
• Union Guard, Unattached Company, 3rd Brigade. Copperopolis
  Copperopolis, California
  Copperopolis is a census-designated place in Calaveras County, California, United States. The population was 3,671 at the 2010 census, up from 2,363 at the 2000 census. The town is located along State Route 4 and is registered as California Historical Landmark #296.- History :Unlike most of the...
  
  , 1864–66

Contra Costa County

Contra Costa County, California

Contra Costa County is a primarily suburban county in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, it had a population of 1,049,025...

• Contra Costa Guard, Company G, 1st Cavalry Battalion, 2nd Brigade. San Pablo
  San Pablo, California
  San Pablo is a city in Contra Costa County, California, United States. The city of Richmond surrounds nearly the whole city. The population was 29,139 at the 2010 census. The current Mayor is Paul V. Morris, and the current Vice Mayor is Cecilia Valdez. Current Councilmembers include Arturo M....
  
  , 1863–1866

Del Norte County

Del Norte County, California

Del Norte County is a county located at the far northwest corner of the U.S. state of California on the Pacific adjacent to the Oregon border. As of the 2010 census, it had a population of 28,610. The county seat is Crescent City, the county's only incorporated city. Del Norte is the abbreviated...

• Crescent City Guard, Unattached Company, 2nd Brigade, 6th Division. Crescent City
  Crescent City, California
  Crescent City is the county seat and only incorporated city in Del Norte County, California. Named for the crescent-shaped stretch of sandy beach south of the city, Crescent City had a total population of 7,643 in the 2010 census, up from 4,006 in the 2000 census...
  
  , 1861-1864

El Dorado County

El Dorado County, California

El Dorado County is a county located in the historic Gold Country in the Sierra Nevada Mountains and foothills of the U.S. state of California. The 2010 population was 181,058. The El Dorado county seat is in Placerville....

• Banks Guard, Company E, 2nd Infantry Battalion, 4th Brigade. Smith's Flat, 1863–1866
• Coloma Greys, Coloma
  Coloma
  Coloma may refer to:In places:*United States:** Coloma, California** Coloma, Michigan** Coloma, Wisconsin** Coloma , Wisconsin** Coloma Township, Whiteside County, Illinois** Coloma Charter Township, Michigan*Spain** Santa Coloma, Asturias...
  
  , 1857-1862 Disbanded after most of its men joined the Second
  2nd Regiment California Volunteer Infantry
  The 2nd Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States. Organized at San Francisco and Carson City September 2, 1861, to December 30, 1862 and attached to Department...
  
   and Fourth Regiments of California Volunteers.
• El Dorado Mountaineers, Company G, 2nd Infantry Battalion, 4th Brigade. El Dorado
  El Dorado, California
  El Dorado , not to be confused with the nearby El Dorado Hills, is an unincorporated community in El Dorado County, California. It is located southwest of Placerville, at an elevation of 1608 feet . The population was 4,096 at the 2000 census...
  
   1863-1866
• Georgetown Union Guard, Company A, 2nd Infantry Battalion, 4th Brigade. Georgetown
  Georgetown, California
  Georgetown is a census-designated place in El Dorado County, California. It is the northeastern-most town in the Californian Mother Lode. The population was 2,367 at the 2010 census, up from 962 at the 2000 census...
  
  , 1863–1868
• National Guard, Company D, 2nd Infantry Battalion, 4th Brigade. Placerville
  Placerville
  Placerville is the name of several places in the United States:* Placerville, California* Placerville, Colorado* Placerville, Idaho...
  
  , 1863–1866
• Placerville City Guard, Company B, 2nd Infantry Battalion, 4th Brigade. Placerville, 1863–1866
• Placerville Guard, 4th Brigade, 1st Division. Placerville, 1862

Humboldt County

Humboldt County, California

Humboldt County is a county in the U.S. state of California, located on the far North Coast 200 miles north of San Francisco. According to 2010 Census Data, the county’s population was 134,623...

 

• Arcata Guard, Company B, 6th Brigade. Arcata, 1862-1867
• Eureka Rifles, Attached to 6th Brigade. Eureka
  Eureka, California
  Eureka is the principal city and the county seat of Humboldt County, California, United States. Its population was 27,191 at the 2010 census, up from 26,128 at the 2000 census....
  
  , 1862-1864
• Humboldt Volunteers, Attached to 2nd Brigade. Hydesville, 1860
• Mounted Volunteers, Attached to 2nd Brigade. Humboldt County, 1861

Lassen County

Lassen County, California

Lassen County is a county located in the northeastern portion of the U.S. state of California. As of the 2010 census, the population was 34,895, up from 33,828 at the 2000 census...

• Honey Lake Rangers, Unattached Cavalry Company, 5th Brigade. Susanville, 1864–1866

Los Angeles County

Los Angeles County, California

Los Angeles County is a county in the U.S. state of California. As of 2010 U.S. Census, the county had a population of 9,818,605, making it the most populous county in the United States. Los Angeles County alone is more populous than 42 individual U.S. states...

• Los Angeles Greys, attached to 1st Brigade, 1st Division. Los Angeles
  Los Ángeles
  Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...
  
  , 1861
• Los Angeles Guard, Attached to 1st Brigade. Los Angeles, 1853-1881
• Los Angeles Mounted Rifles
  Los Angeles Mounted Rifles
  The Los Angeles Mounted Rifles was a company of the California State Militia formed in 1861. It was the only California state unit to serve the Confederacy.- Formation :...
  
  , Attached to 1st Brigade. Los Angeles, 1861
• Monte Mounted Rifles, El Monte
  El Monte, California
  El Monte is a residential, industrial, and commercial city in Los Angeles County, California, United States. The city's slogan is "Welcome to Friendly El Monte," and historically is known as "The End of the Santa Fe Trail." As of the 2010 census, the city had a total population of 113,475,...
  
  , 1861

Marin County

Marin County, California

Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...

• Lincoln Calvary, Company M, 1st Cavalry Regiment, 2nd Brigade. Tomales, 1864–1866
• Washington Rifles, Tomales, 1864

Mariposa County

Mariposa County, California

Mariposa County is a county in the U.S. state of California, located in the western foothills of the Sierra Nevada mountains. It lies north of Fresno, east of Merced, and southeast of Stockton. As of the 2010 census, the population was 18,251 up from 17,130 at the 2000 census...

• Coulterville Rifles, Unattached Company, 3rd Brigade. Coulterville
  Coulterville, California
  Coulterville is a census-designated place in Mariposa County, California. It is located on Maxwell Creek northwest of Mariposa, at an elevation of 1699 feet . Coulterville had a population of 201 at the 2010 census. It is a mining town located in the foothills of the Sierra Nevada. The ZIP Code...
  
  , 1864–1866

Mono County

Mono County, California

Mono County is a county located in the east central portion of the U.S. state of California, to the east of the Sierra Nevada between Yosemite National Park and Nevada. As of the 2010 census, the population was 14,202, up from 12,853 at the 2000 census...

• Esmerelda Rifles, Attached to 3rd Brigade. Aurora
  Aurora, Nevada
  Aurora is a ghost town in Mineral County in the western central part of the U.S. state of Nevada, approximately southwest of the town of Hawthorne and three miles from the California border....
  
  , 1862
• Hooker Light Infantry, Attached to 3rd Brigade. Aurora, 1863

Monterey County

Monterey County, California

Monterey County is a county located on the Pacific coast of the U.S. state of California, its northwestern section forming the southern half of Monterey Bay. The northern half of the bay is in Santa Cruz County. As of 2010, the population was 415,057. The county seat and largest city is Salinas...

• Conner Guard, Attached to First Brigade. Monterey, 1863–1866

Napa County

Napa County, California

Napa County is a county located north of the San Francisco Bay Area in the U.S. state of California. It is coterminous with the Napa, California, Metropolitan Statistical Area. As of 2010 the population is 136,484. The county seat is Napa....

• Napa Guard, Unattached company, 2nd Brigade. Napa
  Napa, California
  -History:The name Napa was probably derived from the name given to a southern Nappan village whose people shared the area with elk, deer, grizzlies and cougars for many centuries, according to Napa historian Kami Santiago. At the time of the first recorded exploration into Napa Valley in 1823, the...
  
   City & County, 1861–1868
• Napa Rangers, Company L, 1st Cavalry Regiment, 2nd Brigade. Napa City & County, 1864–1868
• Washington Light Artillery, Unattached Co., 2nd Brigade. Napa City & County, 1863–1866

Nevada County

Nevada County, California

Nevada County is a county located in the Sierra Nevada of California, in the Mother Lode country. As of 2010 its population was 98,764. The county seat is Nevada City.-History:Nevada County was created in 1851 from parts of Yuba County....

• Company "H", Nevada City
  Nevada City, California
  -2010:The 2010 United States Census reported that Nevada City had a population of 3,068. The population density was 1,399.7 people per square mile . The racial makeup of Nevada City was 2,837 White, 26 African American, 28 Native American, 46 Asian, 0 Pacific Islander, 40 from other races,...
  
  , 1861 It became Company G, 1st Regiment California Volunteer Infantry
  1st California Infantry
  The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.-History:...
  
  
• Eureka Rangers, Unattached Company, of the Fourth Brigade. Moores Flat
  Moores Flat, California
  Moores Flat is a former settlement in Nevada County, California. It is situated at an elevation of above sea level. Moores Flat is located on the north-northeast of North Bloomfield....
  
  , 1863–1866
• Grass Valley Union Guard, Company A, 5th Infantry Battalion, 4th Brigade. Grass Valley
  Grass Valley, California
  -2010:The 2010 United States Census reported that Grass Valley had a population of 12,860. The population density was 2,711.3 people per square mile . The racial makeup of Grass Valley was 11,493 White, 46 African American, 208 Native American, 188 Asian, 9 Pacific Islander, 419 from other...
  
  , 1863–1865
  • Howell Zouaves, Company E, 5th Infantry Battalion, 4th Brigade. Grass Valley, 1865–1872
• Little York Union Guard, Company C, 5th Infantry Battalion, 4th Brigade. You Bet
  You Bet, California
  You Bet is a small unincorporated community mining town in Nevada County, California, United States. You Bet is located northeast of Chicago Park. The town was founded in 1858, on the Sierra Nevada Range, and is bordered by the Yuba and Bear Rivers....
  
  , 1863–1867
• Nevada Light Guard, Unattached Company, 4th Brigade. Nevada City, 1863–1878
• Nevada Rifles, Unattached Company, 2nd Brigade, 4th Division. Nevada City, 1858-1863
• San Juan Guard or Bridgeport Union Guard, Unattached Company, 4th Brigade. North San Juan
  North San Juan, California
  North San Juan is a census-designated place in Nevada County, California, United States, along State Route 49 on the San Juan Ridge in Gold Country. The zip code is 95960...
  
  , 1863–1866

Placer County

Placer County, California

Placer County is a county located in both the Sacramento Valley and Sierra Nevada regions of the U.S. state of California, in what is known as the Gold Country. It stretches from the suburbs of Sacramento to Lake Tahoe and the Nevada border. Because of the expansion of the Greater Sacramento,...

• Auburn Greys, Company A, 1st Infantry Battalion, 4th Brigade. Auburn
  Auburn, California
  Auburn is the county seat of Placer County, California. Its population at the 2010 census was 13,330. Auburn is known for its California Gold Rush history.Auburn is part of the Greater Sacramento area.- History :...
  
  , 1861–1868
• Forest Hill Guard, Company B, 1st Infantry Battalion, 4th Brigade. Forest Hill
  Foresthill, California
  Foresthill is a census-designated place in Placer County, California, United States. It is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area...
  
  , 1861–1866
• Lincoln & Virginia Union Guard, Company D, 1st Infantry Battalion, 4th Brigade. Lincoln
  Lincoln, California
  Lincoln is a city in Placer County, California, United States located in the metropolitan area of Sacramento. The population was 42,819 at the 2010 census, with a growth rate of 282.1 percent since 2000 , making it the fastest growing city in the U.S...
  
  , 1863–1866
• Mountain Volunteers, Forest Hill, 1861 Disbanded, when many company members joined the Volunteer Infantry for active duty.
• Pacific Guard, Company C, 1st Infantry Battalion, 4th Brigade. Dutch Flat, 1861–1868
• Pilot Hill Rangers, Company F, 2nd Infantry Battalion, 4th Brigade. Pilot Hill
  Pilot Hill, California
  Pilot Hill is an unincorporated community in El Dorado County, California. It is located west-northwest of Placerville, at an elevation of 1175 feet ....
  
  , 1864–1866
• Placer Cadets, Company F, 1st Infantry Battalion, 4th Brigade. Iowa Hill
  Iowa Hill, California
  Iowa Hill is an unincorporated community in Placer County, California. Iowa Hill is located north-northwest of Foresthill. It lies at an elevation of 2861 feet .It is northeast of Sacramento...
  
  , 1865–1866
• Placer County Mountaineers, Forest Hill, 1861 Disbanded, when many company's members joined the Volunteer Infantry for active duty.
• Placer Guard, Iowa Hill, 1861–1862
• Shields Guard, Company C, 2nd Infantry Regiment, 2nd Brigade. Forest Hill, 1861
• Union Corps, Company D, 1st Infantry Battalion, 4th Brigade. Michigan Bluff
  Michigan Bluff, California
  Michigan Bluff is an unincorporated community in Placer County, California. Michigan Bluff is located east-southeast of Colfax. It lies at an elevation of 3510 feet ....
  
  , 1862–1863
• Yankee Jims Rifles, Company E, 1st Infantry Battalion, 4th Brigade. Yankee Jim's
  Yankee Jim's, California
  Yankee Jims is an unincorporated community in Placer County, California. Yankee Jims is located west-northwest of Foresthill. It lies at an elevation of 2582 feet ....
  
  , 1863–1867

Plumas County

Plumas County, California

Plumas 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...

• Indian Valley Rifles, Taylorville
  Taylorville, California
  Taylorville is a former settlement in Marin County, California. It was located on the Northwestern Pacific Railroad west-southwest of downtown Novato, at an elevation of 141 feet . Taylorville still appeared on maps as of 1914....
  
   1863 Never an effective unit.
• Union Guard, Quincy
  Quincy, California
  Quincy is a census-designated place and the county seat of Plumas County, California. The population was 1,728 at the 2010 census, down from 1,879 at the 2000 census. Quincy is named after the city of Quincy, Illinois...
  
   1863-1864 Never an effective unit.

Sacramento County

Sacramento County, California

Sacramento 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....

• Baker Guard, Company H, 4th Infantry Regiment, 4th Brigade. Sacramento
  Sacramento
  Sacramento is the capital of the state of California, in the United States of America.Sacramento may also refer to:- United States :*Sacramento County, California*Sacramento, Kentucky*Sacramento – San Joaquin River Delta...
  
  , 1863–1866
• Emmet Guard, Company E, 4th Infantry Regiment, 4th Brigade. Sacramento, 1864-1872
• Granite Guard, Unattached Company, 4th Brigade. Folsom
  Folsom, California
  Folsom is a city in Sacramento County, California, United States. Folsom is most commonly known for its famous Folsom Prison. The population was 72,203 at the 2010 census....
  
   1861-1863
• Independent City Guard, Company A, 2nd Battalion, 4th Brigade. Sacramento, 1856-1880
• National Guard, Company D, 4th Infantry Regiment, 4th Brigade. Sacramento, 1862–1867
• Sacramento Hussars, Unattached Company, 4th Brigade. Sacramento, 1863-1874
• Sacramento Light Artillery, Sacramento, 1864-1880
• Sacramento Sharp Shooters, Company F, 4th Infantry Regiment, 4th Brigade. Sacramento, 1863–1866
• Turner Rifles, Company E, 4th Regiment of Infantry, 4th Brigade. Sacramento, 1863-1864
• Walnut Grove Union Guard, Unattached Company, 4th Brigade. Walnut Grove
  Walnut Grove, California
  Walnut Grove is a census-designated place in Sacramento County, California, United States. It is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area...
  
   1863-1866
• Washington Rifles, Sacramento City & County, 1861 It became Company E, 1st Regiment California Volunteer Infantry
  1st California Infantry
  The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.-History:...
  
  

San Bernardino County

San Bernardino County, California

San Bernardino County is a county in the U.S. state of California. As of the 2010 census, the population was 2,035,210, up from 1,709,434 as of the 2000 census...

• San Bernardino Rangers, Attached to 1st Brigade. San Bernardino
  San Bernardino
  San Bernardino, California is a large city in the Inland Empire Metropolitan Area of Southern California.San Bernardino may also refer to:-Landforms:*San Bernardino , a torrent that flows through the Italian province of Verbano-Cusio-Ossola...
  
  , 1861–1862

San Diego County

San Diego County, California

San Diego County is a large county located in the southwestern corner of the US state of California. Hence, San Diego County is also located in the southwestern corner of the 48 contiguous United States. Its county seat and largest city is San Diego. Its population was about 2,813,835 in the 2000...

• San Diego Guard, Attached to 1st Brigade, 1st Division. San Diego, 1856-1863

San Francisco County

• Black Hussars then "San Francisco Hussars", San Francisco City & County, 1859-1862
  • San Francisco Hussars, Company B, 1st Cavalry Regiment, 2nd Brigade. San Francisco City & County, 1862-1891 Formerly the Black Hussars.
• Carbineers, Company G, First Infantry Regiment, Second Brigade. San Francisco City & County, 1859-1862
• California Grenadiers, Company D, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1864–1866
• California Musketeers, Company H, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1864–1866
• California Rifles, 1863 ?
• California Rifles (French Guard), Company H, First Infantry Regiment, Second Brigade. San Francisco City & County, 1860-1862
• California Tigers, Company D, 2nd Infantry Battalion, 2nd Brigade. San Francisco City & Co., 1865-1869
• Columbian Guard, Company D, 1st Infantry Regiment, 2nd Brigade. San Francisco City & County, 1863–1869
• Ellis Guard, Company C, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1863–1866
• Ellsworth Guard Zouaves, Company B, 1st Regiment Artillery, 2nd Brigade. San Francisco City & County, 1862–1866
• Ellsworth Rifles, Company K, 1st Infantry Regiment, 2nd Brigade. San Francisco City & County, 1861–1872
• Ellsworth Zouaves Cadettes, Unattached Company, 2nd Brigade. San Francisco City & County, 1864–1866
• Emmett Life Guard, Unattached Company, 2nd Brigade. San Francisco City & County, 1862–1866
• Eureka Guard, Company I, 1st Artillery Regiment, 2nd Brigade. San Francisco City & County, 1865–1869
• Federal Guard, Unattached Company, 2nd Brigade. San Francisco City & County, 1865–1866
• First California Guard, Company A, Light Battery, 1st Artillery Regiment, 1st Brigade. San Francisco City & County, 1849–1875
• First Light Dragoons, Company A, 1st Cavalry Battalion, 2nd Brigade. San Francisco City & County, 1852-1880
• Franklin Light Guard, Company E, 1st Artillery Regiment, 2nd Brigade. San Francisco City & County, 1861–1873
• Germania Guard, Company G, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1864–1866
• Governors Guard, Unattached Company, 2nd Brigade. San Francisco City & County, 1865–1866
• Grant Guard, Company B, 2nd Infantry Battalion, 2nd Brigade. San Francisco City & County, 1864–1867
• Hibernia Greens, Unattached Company, 2nd Brigade. San Francisco City & County, 1865–1866
• Hugh O'Neil Guard, Company K, 2nd Infantry Regiment, 2nd Brigade. San Francisco City & County, 1863–1866
• Independent National Guard, Company C, 1st Infantry Regiment, 2nd Brigade. San Francisco City & County, 1859-1880
• Jackson Dragoons, Company C, 1st Cavalry Regiment, 2nd Brigade. San Francisco City & County, 1863-1881
• Liberty Guard, Company F, 1st Regiment Artillery, 2nd Brigade. San Francisco City & County, 1864–1866
• Lincoln Guard, Company A, 2nd Infantry Battalion, 2nd Brigade. San Francisco City & County, 1864-1855
• Wolfe Tone Guard, San Francisco City & County, 1862
• Marion Rifles, Unattached Company, 2nd Brigade. San Francisco City & County, 1852-1861
• Meagher Guard (Irish Invincible), Company E, 2nd Infantry Battalion, 2nd Brigade. San Francisco City & County, 1862–1866
• Mechanics Rifles, Company F, 2nd Artillery Regiment, 2nd Brigade. San Francisco City & County, 1864–1866
• Mission Guard, Unattached Company, 2nd Infantry Regiment, 2nd Brigade. Mission Dolores, 1864–1866
• Montgomery Guard, Company B, 1st Infantry Battalion, 2nd Brigade. San Francisco City & County, 1859-1880
• McClelland Guard to Dec. 1865, thereafter "Excelsior Guard", Company B, 1st Infantry Battalion, 2nd Brigade. San Francisco City & County, 1862–1866
• McMahon Guard, Company B, 2nd Infantry Regiment, 2nd Brigade. San Francisco City & County, 1859-1879
• San Francisco Cadets, Company K, 1st Regiment Artillery, 2nd Brigade. San Francisco City & County, 1863-1884
• San Francisco Light Guard, Company F, 1st Infantry Regiment, 2nd Brigade. San Francisco City & County, 1858–1880
• San Francisco Tiralleurs, Company F, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1864-1880
• San Francisco Jaegers, Company K, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1864–1866
• Seward Guard, Unattached Company, 2nd Brigade. San Francisco City & County, 1865–1866
• Sheridan Guard, Company C, 2nd Infantry Battalion, 2nd Brigade. San Francisco City & County, 1864–1866
• Shields Guard, Company C, 2nd Infantry Regiment, 2nd Brigade. San Francisco City & County, 1862–1869
• Sigel Rifles, Company B, 6th Infantry Regiment, 3rd Brigade. San Francisco City & County, 1861–1866
• State Guard, Company A, 1st Infantry Regiment, 2nd Brigade. San Francisco City & County, 1863-1869
• Tittel Zouaves, Company I, 6th Infantry Regiment, 2nd Brigade. San Francisco City & County, 1864–1866
• Union Guard (Gatling Battery), Company A, 1st Regiment Artillery, 2nd Brigade. San Francisco City & County, 1861–1881
• Washington Continental Guard, Company D, 1st Infantry, 2nd Brigade. San Francisco City & County, 1855-1862
  • Washington Light Infantry, Company D, 1st Infantry, 2nd Brigade. San Francisco City & County, 1862-1878 Formerly Washington Continental Guard.

San Joaquin County

San Joaquin County, California

San Joaquin County is a county located in Central Valley of the U.S. state of California, just east of the San Francisco Bay Area. As of the 2010 census, the population was 685,306. The county seat is Stockton.-History:...

• Castoria Guard, Unattached Company, 3rd Brigade. French Camp
  French Camp
  French Camp can refer to:* French Camp, California, in San Joaquin County* French Camp, Amador County, California* French Camp, Yolo County, California* French Camp, Mississippi...
  
  , 1864–1866
• Linden Light Dragoons, Unattached Company, 3rd Brigade. Linden
  Linden, California
  Linden is a census-designated place in San Joaquin County, California, United States. The population was 1,784 at the 2010 census, up from 1,103 at the 2000 census...
  
  , 1863-1864
• Mokelumne Light Dragoons, Unattached Company, 3rd Brigade. Lockeford, 1863–1867
• San Joaquin Mounted Rifles, Unattached Company, 1st Brigade, 3rd Division. Knight's Ferry
  Knights Ferry, California
  Knights Ferry is a town in Stanislaus County, California, United States. Nestled in the foothills of the Sierra Nevada, it is about east of Modesto on the Stanislaus River. The Willms Ranch, a California Landmark near the town, was one of many filming locations for the television series Bonanza...
  
  , 1858–1862
• Stockton Blues
  Stockton Blues
  The Stockton Blues was a California state militia unit organized in 1857 and disbanded in 1861 due to secessionist dissension. Union men then reformed under the Stockton Union Guard, 1861–1866.-References:**...
  
  , Stockton
  Stockton, California
  Stockton, California, the seat of San Joaquin County, is the fourth-largest city in the Central Valley of the U.S. state of California. With a population of 291,707 at the 2010 census, Stockton ranks as this state's 13th largest city...
  
  , 1859-1861
• Stockton City Guard, Unattached Company, 3rd Brigade. Stockton, 1864–1866
• Stockton Light Artillery, Unattached Company, 3rd Brigade. Stockton, 1864–1868
• Stockton Light Dragoons, Unattached Company, 3rd Brigade. Stockton, 1862–1866
• Stockton Union Guard, Unattached Company, 3rd Brigade. Stockton, 1861–1866

San Mateo County

San Mateo County, California

San Mateo County is a county located in the San Francisco Bay Area of the U.S. state of California. It covers most of the San Francisco Peninsula just south of San Francisco, and north of Santa Clara County. San Francisco International Airport is located at the northern end of the county, and...

• Jefferson Cavalry, Company H, 1st Cavalry Regiment, 2nd Brigade. Redwood City, 1864–1866

Santa Clara County

Santa Clara County, California

Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...

• Alviso Rifles (Guards), Company C, 5th Infantry Battalion, 2nd Brigade. Alviso Mills, 1863–1866
• Burnett Light Guard, Company I , 1st Cavalry Regiment, 2nd Brigade. San Jose
  San Jose, California
  San Jose is the third-largest city in California, the tenth-largest in the U.S., and the county seat of Santa Clara County which is located at the southern end of San Francisco Bay...
  
  , 1864–1866
• Gilroy Guard, Company E, 5th Infantry Regiment, 2nd Brigade. Gilroy
  Gilroy
  - People :* Beryl Gilroy* Dan Gilroy* Frank D. Gilroy* Freddie Gilroy* Henry Gilroy* Ian Gilroy* Jackie Gilroy* John Gilroy * Keith Gilroy* Linda Gilroy* Matt Gilroy* Norman Thomas Gilroy* Pat Gilroy* Paul Gilroy* Rex Gilroy* Thomas F...
  
  , 1863–1866
• Johnson Guard, Unattached Company, 2nd Brigade. San Jose, 1865–1866
• National Guard, San Jose, 1857-1861 Disbanded when many of its members joined the regular army.
• National Light Artillery, Unattached Company, 2nd Brigade. San Jose, 1863
• New Almaden Calvary, Company K, 1st Cavalry Regiment, 2nd Brigade. New Almaden
  New Almaden
  The New Almaden quicksilver mine in the Santa Teresa Hills in Santa Clara County, California, United States, is the oldest and most productive quicksilver mine in the U.S. The site was known to the Ohlone Indians for its cinnabar long before a Mexican settler discovered the ores in 1820...
  
  , 1864–1866
• San Jose Volunteers, San Jose, 1861 Became Company D, 1st Regiment California Volunteer Infantry
  1st California Infantry
  The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.-History:...
  
  
• Redwood Calvary, Company E, 1st Cavalry Regiment, 2nd Brigade. McCarthysville
  Saratoga, California
  Saratoga is a city in Santa Clara County, California, USA. It is located on the west side of the Santa Clara Valley, directly west of San Jose, in the San Francisco Bay area. The population was 29,926 at the 2010 census....
  
  , 1863–1866
• San Jose Zouaves, Company H, 1st Artillery Regiment, 2nd Brigade. San Jose, 1862–1866
• Santa Clara Light Infantry, Company F, 1st Artillery Regiment, 2nd Brigade. Santa Clara
  Santa Clara, California
  Santa Clara , founded in 1777 and incorporated in 1852, is a city in Santa Clara County, in the U.S. state of California. The city is the site of the eighth of 21 California missions, Mission Santa Clara de Asís, and was named after the mission. The Mission and Mission Gardens are located on the...
  
  , 1861-1864 Renamed Santa Clara Guard in 1864.
  • Santa Clara Guard, Company H, 5th Infantry Regiment, 2nd Brigade. Santa Clara, 1864–1866
• Santa Clara Zouaves, Unattached Company, 2nd Brigade. Santa Clara, 1863–1865
• Union Guard, Company A, 5th Infantry Regiment, 2nd Brigade. San Jose, 1861–1866

Santa Cruz County

Santa Cruz County, California

Santa Cruz County is a county located on the Pacific coast of the U.S. state of California, on the California Central Coast. The county forms the northern coast of the Monterey Bay. . As of the 2010 U.S. Census, its population was 262,382. The county seat is Santa Cruz...

• Butler Guard, Company G, 5th Infantry Regiment, 2nd Brigade. Santa Cruz
  Santa Cruz, California
  Santa Cruz is the county seat and largest city of Santa Cruz County, California in the US. As of the 2010 U.S. Census, Santa Cruz had a total population of 59,946...
  
  , 1863–1866
• Santa Cruz Cavalry, Company F, 1st Cavalry Regiment, 2nd Brigade. Santa Cruz, 1863–1866
• Santa Cruz Volunteers, Company H, 1st Cavalry Regiment, 2nd Brigade. Santa Cruz, 1861
• Watsonville Guard, Company D, 5th Infantry Regiment, 2nd Brigade. Watsonville, 1863–1868

Shasta County

Shasta County, California

Shasta County is a county located in the northern portion of the U.S. state of California. The county occupies the northern reaches of the Sacramento Valley, with portions extending into the southern reaches of the Cascade Range. As of the 2010 census, the population was 177,223, up from 163,256...

• Lyon Light Infantry, Company C, 5th Brigade. Shasta
  Shasta, California
  Shasta is a census-designated place in Shasta County, California. Shasta sits at an elevation of . The 2010 United States census reported Shasta's population was 1,771....
  
  , 1863–1868
• Trueman Head Rifles, Company F, 5th Brigade. French Gulch
  French Gulch, California
  French Gulch is a census-designated place in Shasta County, California, United States. The population was 346 at the 2010 census, up from 254 at the 2000 census.-Geography:French Gulch is located at ....
  
  , 1863 - 1866

Sierra County

Sierra County, California

Sierra County is a county located in the Sierra Nevada of the U.S. state of California, northeast of Sacramento on the border with Nevada. As of the 2010 census the population was 3,240, down from 3,555 at the 2000 census. The county seat is Downieville....

• Allegheny Guard, 3rd Infantry Battalion, 4th Brigade. Allegheny
  Alleghany, California
  Alleghany is a small census-designated place in Sierra County, California, United States in the Sierra Nevada mountains. It is situated in the Gold Country and continues to be a significant locale for gold mining. The famous Sixteen-to-One Mine has been in operation since the days of the...
  
  , 1863–1866
• Forest Rifles, Company C, 3rd Infantry Battalion, 2nd Brigade. Forest City
  Forest, California
  Forest is a small unincorporated community in Sierra County, California, United States. Today, the town is mostly abandoned, although its population swelled to thousands during the California Gold Rush. Today, old buildings still line Main Street, such as a general store, a dance hall, a school...
  
   1854-1866
• Gibsonville Blues, Company E, 3rd Infantry Battalion, Second Brigade. Gibsonville
  Gibsonville, California
  Gibsonville is an unincorporated community in Sierra County, California, United States. Gibsonville is west-northwest of Mount Fillmore. A post office opened in Gibsonville in 1855 and closed in 1910....
  
  , 1858–1862, Disbanded after most of its members joined California Volunteer Regiments as individuals.
• La Porte Guard, Unattached Company later Company C, 4th Infantry Battalion, 4th Brigade. La Porte
  La Porte, California
  La Porte is a census-designated place in Plumas County, California, United States. The population was 26 at the 2010 census, down from 43 at the 2000 census.-Geography:La Porte is located at ....
  
   1863-1866
• Minnesota Guard, Company C, 4th Brigade. Minnesota City, 1863–1866
• Mountain Rangers, Unattached Company, 4th Brigade. Sierraville
  Sierraville, California
  Sierraville is a census-designated place in Sierra County, California, United States. It is at the southern end of the huge Sierra Valley which is used primarily as pasture and is also at the junction of California State Route 49 and California State Route 89 southwest of Loyalton. Sierraville has...
  
  , 1864–1866
• National Guard, Company E, 1st Battalion, 2nd Brigade. Downieville
  Downieville, California
  Downieville is a census-designated place in and the county seat of Sierra County, California, United States. Downieville sits at an elevation of...
  
  , 1857–1866
• Sierra Greys, La Porte, 1858-1861 Became Company F, First Regiment of Infantry, California Volunteers
  1st California Infantry
  The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.-History:...
  
  
• Table Rock Union Guard, Company G, 7th Infantry Regiment, 4th Brigade. Howland Flat, 1864–1866
• Union Guard, Unattached Company, 4th Brigade. Eureka 1864-1866

Siskiyou County

Siskiyou County, California

Siskiyou County is a county located in the far northernmost part of the U.S. state of California, in the Shasta Cascade region on the Oregon border. Yreka is the county seat. Because of its substantial natural beauty, outdoor recreation opportunities, and Gold Rush era history, it is an important...

• Scott Valley Guard, Unattached Company, 5th Brigade. Scott Valley, 1863 Disbanded the same year.
• Siskiyou Light Guard, Company D, 5th Brigade. Yreka, 1863–1866

Solono County

Solano County, California

Solano County is a county located in Bay-Delta region of the U.S. state of California, about halfway between San Francisco and Sacramento and is one of the nine San Francisco Bay Area counties. The county's population was reported by the U.S. Census to be 413,344 in 2010...

• Benicia Guard (Starsfield Guard from late 1862), Company G, 2nd Brigade. Benicia, 1862–1866
• Lincoln Artillery, Unattached Company, 2nd Brigade. Vallejo
  Vallejo, California
  Vallejo is the largest city in Solano County, California, United States. The population was 115,942 at the 2010 census. It is located in the San Francisco Bay Area on the northeastern shore of San Pablo Bay...
  
  , 1864–1866
• Maine Prairie Rifles, Unattached Company, 2nd Brigade. Maine Prairie, 1863–1866
• McClellan Guard, Company I, 1st Artillery, 2nd Brigade. Vallejo, 1863-1864 Identified as a Copperhead
  Copperheads (politics)
  The Copperheads were a vocal group of Democrats in the Northern United States who opposed the American Civil War, wanting an immediate peace settlement with the Confederates. Republicans started calling anti-war Democrats "Copperheads," likening them to the venomous snake...
  
   Company its officers were mustered out of service.
• Suisun Cavalry, Company D, 1st Cavalry Regiment, 2nd Brigade. Suisun City, 1863–1866
• Vallejo Rifles, Unattached Company, 2nd Brigade, Vallejo, 1861–1866

Sonoma County

Sonoma County, California

Sonoma County, located on the northern coast of the U.S. state of California, is the largest and northernmost of the nine San Francisco Bay Area counties. Its population at the 2010 census was 483,878. Its largest city and county seat is Santa Rosa....

• Bloomfield Guard, Company C, 1st Infantry Battalion, 2nd Brigade. Bloomfield, California
  Bloomfield, California
  Bloomfield is a census-designated place in Sonoma County, California, U.S. It is located in a rural area about southwest of Santa Rosa, California at the junction of Bloomfield Road and Valley Ford Road. Americano Creek flows westward along the south edge of the town.-History:Bloomfield is located...
  
  , 1862–1866
• Emmet Guard (Emmet Rifles after early 1862), Company F , 2nd Infantry Regiment, 2nd Brigade. Petaluma, 1861–1866
• Petaluma City Guard, Company E, 1st Infantry Battalion, 2nd Brigade. Petaluma 1864-1866
• Petaluma Guard, Company D, 1st Infantry Battalion, 2nd Brigade. Petaluma, 1856-1866
• Russian River Rifles, Company B, 1st Infantry Battalion, 2nd Brigade. Healdsburg, 1862–1866
• Sotoyame Guard, Healdsburg, 1858-1861 Disbanded in 1861 after a rapid decline in membership, in this pro Southern area.
• Washington Guard, Company A, 1st Infantry Battalion, 2nd Brigade. Santa Rosa
  Santa Rosa, California
  Santa Rosa is the county seat of Sonoma County, California, United States. The 2010 census reported a population of 167,815. Santa Rosa is the largest city in California's Wine Country and fifth largest city in the San Francisco Bay Area, after San Jose, San Francisco, Oakland, and Fremont and 26th...
  
  , 1862–1866

Sutter County

Sutter County, California

Sutter County is a county located along the Sacramento River in the Central Valley of the U.S. state of California, north of state capital Sacramento. Sutter County is part of the Greater Sacramento CSA....

• Butte Mountain Rangers, Company D, 7th Infantry Regiment, 4th Brigade. South Butte Mountains, 1863–1866
• Company "A", Yuba City, 1861 Organized but disbanded due to lack of available arms.

Stanislaus County

Stanislaus County, California

Stanislaus County is a county located in the Central Valley of the U.S. state of California. As the price of housing has increased in the San Francisco Bay Area, many people who work in the southern reaches of the Bay Area have opted for the longer commute and moved to Stanislaus County for the...

• Franklin Guard, Company F, 3rd Infantry Regiment, 3rd Brigade. Knight's Ferry
  Knights Ferry, California
  Knights Ferry is a town in Stanislaus County, California, United States. Nestled in the foothills of the Sierra Nevada, it is about east of Modesto on the Stanislaus River. The Willms Ranch, a California Landmark near the town, was one of many filming locations for the television series Bonanza...
  
  , 1862–1866
• Stanislaus Guard, 1st Brigade, 3rd Division. Knight's Ferry, 1860-1862 Disbanded in 1862.

Tehama County

Tehama County, California

Tehama County is a county located in the northern part of the U.S. state of California. It is bisected by the Sacramento River. As of 2010 its population was 63,463, up from 56,039 as of 2000. The county seat is Red Bluff.-History:...

• Lassen Rangers, Unattached Company, 5th Brigade. Red Bluff
  Red Bluff, California
  Red Bluff is a city in and the county seat of Tehama County, California, United States. The population was 14,076 at the 2010 census, up from 13,147 at the 2000 census....
  
  , 1863–1866

Tuolumne County

Tuolumne County, California

Tuolumne County is a county in the Sierra Nevada of the U.S. state of California. The northern half of Yosemite National Park is located in the eastern part of the county. As of the 2010 census, the population was 55,365, up from 54,501 at the 2000 census...

• Grant Guard, Company G, 1st Infantry Battalion, 3rd Brigade. Shaw's Flat, 1863–1866
• Jamestown Guard, Company D, 1st Infantry Battalion, 3rd Brigade. Jamestown
  Jamestown, California
  Jamestown is a census-designated place in Tuolumne County, California, United States. The population was 3,433 at the 2010 census, up from 3,017 at the 2000 census.A scene from the movie Hidalgo was filmed in Jamestown...
  
  , 1862–1866
• Sigels Guard, Company B, 1st Infantry Battalion, 3rd Brigade. Sonora
  Sonora, California
  Sonora is the county seat of Tuolumne County, California. As of the 2010 census, the city population was 4,903, up from 4,423 at the 2000 census. Sonora is the only incorporated community in Tuolumne County.-Geography:...
  
  , 1862–1866
• Tuolumne Guard, Company E, 3rd Infantry Regiment, 3rd Brigade. Montezuma
  Montezuma, California
  Montezuma is a former hamlet and township in Solano County, California, located in the California Delta region of the state; the township, which embraced the hamlet, and several other places, such as Bird's Landing--which still exists--included portions of the Montezuma Hills.The hamlet was also a...
  
  , 1862–1866
• Tuolumne Home Guard, Company A, 3rd Infantry Regiment, 3rd Brigade. Columbia
  Columbia, California
  Columbia is a former California Gold Rush boomtown located in the Sierra Nevada foothills. The central portion of the town is preserved as a California state historic park and a National Historic Landmark that preserves the original, gold-rush-town flavor of the town, once dubbed the "Gem of the...
  
  , 1861–1866
• Tuolumne Home Guard, Company C, 3rd Infantry Regiment, 3rd Brigade. Chinese Camp
  Chinese Camp, California
  Chinese Camp is a census-designated place in Tuolumne County, California, United States. The population was 126 at the 2010 census, down from 146 at the 2000 census. It lies in the grassy foothills of the Sierra Nevada near the southern end of California's Gold Country.-History:Chinese Camp is the...
  
  , 1862–1866

Trinity County

Trinity County, California

Trinity County is a large, rugged and mountainous, heavily forested county located in the northwestern portion of the U.S. state of California, along the Trinity River and within the Salmon/Klamath Mountains. It covers an area of over two million acres , and as of the 2010 census its population...

• Douglas City Rifles, Unattached Company, 5th Brigade. Douglas City, 1861–1866
• Halleck Rifles, Unattached Company, 5th Brigade. Weaverville
  Weaverville, California
  Weaverville is a census-designated place and the county seat of Trinity County, California. The population was 3,600 at the 2010 census, up from 3,554 at the 2000 census.-History:Founded in 1850, Weaverville is a historic California Gold Rush town...
  
  , 1862–1866
• Union Guard, Unattached Company, 2nd Brigade. Weaverville, 1861–1862

Tulare County

Tulare County, California

Tulare County is a county located in the Central Valley of the U.S. state of California, south of Fresno. Sequoia National Park is located in the county, as are part of Kings Canyon National Park, in its northeast corner , and part of Mount Whitney, on its eastern border...

• Tulare Home Guard, Unattached Company, 3rd Brigade. Visalia
  Visalia
  -California:* Visalia, California* Downtown Visalia* Greater Visalia Area** Tulare County, California* Visalia Municipal Airport-Fictional Places:* Visalia, California , a fictional version of Visalia where parts of Season 2 of 24 was set....
  
  , 1863–1866

Yolo County

Yolo County, California

Yolo County is a county located in the northern part of the U.S. state of California, bordered by the other counties of Sacramento, Solano, Napa, Lake, Colusa, and Sutter. The city of Woodland is its county seat, though Davis is its largest city....

• Washington Guard, Company G, 4th Infantry Regiment, 4th Brigade. Washington
  Washington, California
  Washington is a census-designated place located in Nevada County, California. Washington is located on the banks of the South Fork of The Yuba River and has a population of approximately two hundred people...
  
   1863-1866
• Woodland Guard, Company K, 4th Infantry Regiment, 4th Brigade. Woodland
  Woodland, California
  Woodland is the county seat of Yolo County, California, located approximately northwest of Sacramento, and is a part of the Sacramento - Arden-Arcade - Roseville Metropolitan Statistical Area. The population was 55,468 at the 2010 census.Woodland's origins trace back to 1850 when California...
  
  , 1863–1866
• Yolo Union Cavalry, Unattached Company, 4th Brigade. Woodland, 1863–1866

Yuba County

Yuba County, California

Yuba County is a county located in the U.S. state of California's Central Valley, north of Sacramento, along the Feather River. As of the 2010 census, its population was 72,155. The county seat is Marysville. Yuba County is part of the Greater Sacramento area.-History:Yuba County was one of the...

• California Zouaves, 1st Brigade, 5th Division. Marysville
  Marysville, California
  Marysville is the county seat of Yuba County, California, United States. The population was 12,072 at the 2010 census, down from 12,268 at the 2000 census. It is included in the Yuba City Metropolitan Statistical Area, often referred to as the Yuba-Sutter Area after the two counties, Yuba and...
  
   1861-1862
• Downey Guard, Unattached Company, 1st Brigade, 5th Division. Timbuctoo
  Timbuctoo, California
  Timbuctoo is an unincorporated community in Yuba County, California. It lies northwest of Smartsville, at an elevation of 397 feet .-History:Timbuctoo was once the largest town in eastern Yuba County...
  
   1860-1861
• Hooker Guard, Company B, 7th Infantry Regiment, 4th Brigade. Oregon House
  Oregon House, California
  Oregon House is an unincorporated community in Yuba County, California. It is located northeast of Marysville, at an elevation of 1526 feet .The settlement grew up around a travelers' rest stop built in 1852...
  
  , 1863–1866
• Marysville Rifles, Company B, 4th Infantry Regiment, 4th Brigade. Marysville, 1859-1866
• Saragossa Light Guard, Company H, 7th Infantry, 4th Brigade. Marysville, 1865–1866
• Union Guard, Company A, 7th Infantry Regiment, Fourth Brigade. Marysville, 1863–1866
• Yuba Light Infantry, Unattached Company, 4th Brigade. Camptonville
  Camptonville, California
  Camptonville is a small town and census-designated place located in northeastern Yuba County, California. The town is located northeast of Marysville, off Highway 49 between Downieville and Nevada City. It is located on a ridge between the North Fork and Middle Fork of the Yuba River, not far...
  
  1863-1866

Sources

• The California State Military Museum, California Militia and National Guard Unit Histories, Index to Militia Units of the State of California 1850-1881
• Inventory of the Military Department. Militia Companies Records, 1849-1880