. "50842" . "641" . . "0.0"^^ . "-5" . "750000.0"^^ . "-6" . "751097.0"^^ . . "Cromwell is a city in Union County, Iowa, United States. The population was 107 at the 2010 census."@en . "142.472"^^ . . "392.0"^^ . . "391.973"^^ . "142.5"^^ . "750000.0"^^ . "751097.0"^^ . . "Cromwell, Iowa"@en . . "107"^^ .