Oklahoma City (), officially the City of Oklahoma City, and often shortened to OKC, is the capital and largest city in the U.S. state of Oklahoma. The county seat of Oklahoma County, it ranks 25th among United States cities in population, and is the 11th largest city in the South. The population grew following the 2010 census and is estimated to have reached 655,057 as of July 2019. 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.