The Omaha are a federally recognized Native American

Native Americans in the United States

Native 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...

 nation which lives on the Omaha Reservation

Omaha Reservation

The Omaha Reservation of the Omaha tribe is located mostly in Thurston County, Nebraska, with sections in neighboring Cuming County and Burt County, in addition to Monona County in Iowa. The tribal seat of government is in Macy, with the towns of Rosalie, Thurston, Pender and Walthill located in...

 in northeastern Nebraska

Nebraska

Nebraska is a state on the Great Plains of the Midwestern United States. The state's capital is Lincoln and its largest city is Omaha, on the Missouri River....

 and western Iowa

Iowa

Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The Omaha Indian Reservation lies primarily in the southern part of Thurston County

Thurston County, Nebraska

-History:Varying cultures of indigenous peoples lived along the rivers for thousands of years before European encounter.Thurston County was organized by European Americans in 1889 from land that had been divided between Dakota and Burt counties since the dissolution of Blackbird County in 1879. It...

 and northeastern Cuming County

Cuming County, Nebraska

-History:Cuming County was formed in 1855. It was named after Thomas B. Cuming, an early governor of this territory.-Demographics:As of the census of 2000, there were 10,203 people, 3,945 households, and 2,757 families residing in the county. The population density was 18 people per square mile...

, Nebraska, but small parts extend into the northeast corner of Burt County

Burt County, Nebraska

-History:Burt County was formed in 1854. It was named after Francis Burt, the first governor of Nebraska Territory.-Demographics:As of the census of 2000, there were 7,791 people, 3,155 households, and 2,240 families residing in the county. The population density was 16 people per square mile . ...

 and across the Missouri River

Missouri River

The 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...

 into Monona County, Iowa

Monona County, Iowa

-2010 census:The 2010 census recorded a population of 9,243 in the county, with a population density of . There were 4,697 housing units, of which 4,050 were occupied.-2000 census:...

. Its total land area is 796.355 km² (307.474 sq mi) and a population of 5,194 was recorded in the 2000 census

United States Census, 2000

The Twenty-second United States Census, known as Census 2000 and conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 persons enumerated during the 1990 Census...

.