. "Martelle, Iowa"@en . "Martelle is a city in Jones County, Iowa, United States. The population was 255 at the 2010 census. It is part of the Cedar Rapids Metropolitan Statistical Area."@en . . "52305" . . "880596.0"^^ . "880000.0"^^ . "289.577"^^ . "277.063"^^ . . . "-5" . "0.0"^^ . . "255"^^ . "289.6"^^ . "880000.0"^^ . "880596.0"^^ . . "319" . "-6" . "277.0"^^ .