Carter County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 47,557. Its county seat is Ardmore. The county was named for Captain Ben W. Carter, a Cherokee who lived among the Chickasaw.Carter County is part of the Ardmore, OK Micropolitan Statistical Area. It is also a part of the Texoma region.HistoryPrior to statehood, the present Carter County, Oklahoma, was part of Pickens County in the Chickasaw Nation of Indian Territory. After the Civil War, the government of the United States forced the Chickasaw government to allow railroads built across its territory. The Gulf, Colorado and Santa Fe Railway (controlled by the Atchison, Topeka and Santa Fe Railway, AT&SF) built a line north from Texas to Purcell.In 1901-1903 the Arkansas and Choctaw Railway (acquired by the St. Louis and San Francisco Railway in 1907) built a line from Arkansas to Ardmore. Oil production spurred further railroad development. In 1913-14, the Oklahoma, New Mexico and Pacific Railway constructed a line from Ardmore west to Ringling. In 1916, the Ringling and Oil Fields Railway laid tracks north from Ringling Junction to Healdton. These last two rail lines were abandoned in 1976.
