Calumet, IA is a city located in Obrien County, Iowa and has a land area of 0.27 square miles (0.70 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Calumet, Iowa and it is 51009. The area code(s) for Calumet is 712.
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