Caddo County is a county located in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Oklahoma

Oklahoma

Oklahoma is a state located in the South Central region of the United States of America. With an estimated 3,751,351 residents as of the 2010 census and a land area of 68,667 square miles , Oklahoma is the 28th most populous and 20th-largest state...

. As of 2000, the population was 30,150. Its county seat

County seat

A 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....

 is Anadarko

Anadarko, Oklahoma

Anadarko is a city in Caddo County, Oklahoma, United States. The population was 6,645 at the 2000 census. It is the county seat of Caddo County.-Early History:Anadarko got its name when its post office was established in 1873...

. It is named after the Caddo

Caddo

The Caddo Nation is a confederacy of several Southeastern Native American tribes, who traditionally inhabited much of what is now East Texas, northern Louisiana and portions of southern Arkansas and Oklahoma. Today the Caddo Nation of Oklahoma is a cohesive tribe with its capital at Binger, Oklahoma...

 tribe who were settled here on the 1870s. Caddo county is immediately west of the seven-county Greater Oklahoma City

Oklahoma city

Oklahoma City is the capital and largest city of the U.S. state of Oklahoma.Oklahoma City may also refer to:*Oklahoma City metropolitan area*Downtown Oklahoma City*Uptown Oklahoma City*Oklahoma City bombing*Oklahoma City National Memorial...

 metro area, and although is not officially in the metro area, has many economic ties in this region.
Caddo County was organized on August 6, 1901, when the Federal Government allotted the Kiowa

Kiowa

The Kiowa are a nation of American Indians and indigenous people of the Great Plains. They migrated from the northern plains to the southern plains in the late 17th century. In 1867, the Kiowa moved to a reservation in southwestern Oklahoma...

, Comanche

Comanche

The Comanche are a Native American ethnic group whose historic range consisted of present-day eastern New Mexico, southern Colorado, northeastern Arizona, southern Kansas, all of Oklahoma, and most of northwest Texas. Historically, the Comanches were hunter-gatherers, with a typical Plains Indian...

 and Arapaho

Arapaho

The Arapaho are a tribe of Native Americans historically living on the eastern plains of Colorado and Wyoming. They were close allies of the Cheyenne tribe and loosely aligned with the Sioux. Arapaho is an Algonquian language closely related to Gros Ventre, whose people are seen as an early...

 reservations and sold the surplus land to white settlers.
According to the U.S. Census Bureau

United States Census Bureau

The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

, the county has a total area of 1290 square miles (3,341 km²).