Colfax, WI is a city located in Dunn County, Wisconsin and has a land area of 138.36 square miles (358.35 km2). The water area for the city is 3.32 square miles or 8.60 km2. There is one unique zip code in Colfax, Wisconsin and it is 54730. The area code(s) for Colfax is 715.
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