Gresham, WI is a city located in Shawano County, Wisconsin and has a land area of 50.56 square miles (130.95 km2). The water area for the city is 1.03 square miles or 2.67 km2. There is one unique zip code in Gresham, Wisconsin and it is 54128. The area code(s) for Gresham is 715.
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