"645.177"^^ . . . "645.2"^^ . . "Griswold, Iowa"@en . "1.61e+06"^^ . "1.60579e+06"^^ . "336.0"^^ . . "712Exchange: 778" . . "Griswold is a city in Cass County, Iowa, United States. The population was 1,036 at the 2010 census. The town was named for J. N. A. Griswold, a railroad director."@en . . "335.89"^^ . "1036"^^ . "1.61e+06"^^ . "51535" . "1.60579e+06"^^ . "0.0"^^ . "-5" . . "-6" .