Oconto Falls, WI is a city located in Oconto County, Wisconsin and has a land area of 80.29 square miles (207.95 km2). The water area for the city is 0.92 square miles or 2.38 km2. There is one unique zip code in Oconto Falls, Wisconsin and it is 54154. The area code(s) for Oconto Falls is 920.
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