Mahnomen, MN is a city located in Mahnomen County, Minnesota and has a land area of 234.94 square miles (608.49 km2). The water area for the city is 7.16 square miles or 18.54 km2. There is one unique zip code in Mahnomen, Minnesota and it is 56557. The area code(s) for Mahnomen is 218.
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