Bluffton, MN is a city located in Otter Tail County, Minnesota and has a land area of 18.51 square miles (47.94 km2). The water area for the city is 0.09 square miles or 0.23 km2. There is one unique zip code in Bluffton, Minnesota and it is 56518. The area code(s) for Bluffton is 218.
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