Oklahoma City, officially the
City of Oklahoma City, and often shortened to
OKC, is the capital and most populous city of the U.S. state of Oklahoma. The county seat of Oklahoma County, its population ranks 20th among United States cities and 8th in the Southern United States. The population grew following the 2010 census and reached 681,054 in the 2020 census. The Oklahoma City metropolitan area had a population of 1,396,445, and the Oklahoma City–Shawnee Combined Statistical Area had a population of 1,469,124, making it Oklahoma's largest municipality and metropolitan area by population.