Dennison, MN is a city located in Goodhue County, Minnesota and has a land area of 44.54 square miles (115.36 km2). The water area for the city is 0.01 square miles or 0.03 km2. There is one unique zip code in Dennison, Minnesota and it is 55018. The area code(s) for Dennison is 507/651.
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