"Mangum, Oklahoma"@en . "3010"^^ . "4.40298e+06"^^ . "-5" . . . . "487.0"^^ . "Mangum is a city in and county seat of Greer County, Oklahoma, United States. The population was 3,010 at the 2010 census. It was named for A. S. Mangum, who owned the land on which the town was founded."@en . "4.5e+06"^^ . . "487.07"^^ . "73554" . . "4.40298e+06"^^ . "4.5e+06"^^ . "-6" . . "580" . "0.0"^^ . .