Clam Lake, WI is a city located in Ashland County, Wisconsin and has a land area of 90.60 square miles (234.65 km2). The water area for the city is 4.32 square miles or 11.19 km2. There is one unique zip code in Clam Lake, Wisconsin and it is 54517. The area code(s) for Clam Lake is 715.
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