Au Gres, MI is a city located in Arenac County, Michigan and has a land area of 44.71 square miles (115.80 km2). The water area for the city is 7.12 square miles or 18.44 km2. There is one unique zip code in Au Gres, Michigan and it is 48703. The area code(s) for Au Gres is 989.
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