Seminole County, Oklahoma

Seminole County
County
Seminole County Courthouse in Wewoka
Location within the U.S. state of Oklahoma
Oklahoma's location within the U.S.
Coordinates: 35°10′N 96°37′W / 35.17°N 96.61°W / 35.17; -96.61
Country	United States
State	Oklahoma
Founded	1907
Seat	Wewoka
Largest city	Seminole
Area
• Total	640 sq mi (1,700 km2)
• Land	633 sq mi (1,640 km2)
• Water	7.6 sq mi (20 km2)  1.2%
Population  (2020)
• Total	23,556
• Density	37/sq mi (14/km2)
Congressional district	5th
Website	seminolecountyok.com

Seminole County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 23,556.^[1] Its county seat is Wewoka.^[2] Most of the county was a reservation for the Seminole Nation of Oklahoma which still retains jurisdiction over some land in the county. A small portion of land at the eastern end of the county belonged to the Muscogee (Creek) Nation.

Seminole County is notable for the Greater Seminole Field, one of the most important oil fields ever found, which is still producing.^[3] It extends into nearby counties. In the early years of the oil boom, workers and adventurers flooded into the county, rapidly tripling the population. As oil production later declined, jobs and residents left.