"620000.0"^^ . "-5" . "621597.0"^^ . . . . . "409.0"^^ . . "Potwin, Kansas"@en . . "-6" . . "620000.0"^^ . . "Potwin is a city in Butler County, Kansas, United States. It is named after the town site land owner Charles Potwin. As of the 2010 census, the city population was 449."@en . "City Clerk"@en . "621597.0"^^ . "Mayor"@en . . "620" . "67123" . "409.042"^^ . . "449"^^ . . "0.0"^^ .