Frontenac, MN is a city located in Goodhue County, Minnesota and has a land area of 3.58 square miles (9.27 km2). The water area for the city is 1.32 square miles or 3.42 km2. There is one unique zip code in Frontenac, Minnesota and it is 55026. The area code(s) for Frontenac is 651.
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