Houghton Lake, MI is a city located in Roscommon County, Michigan and has a land area of 77.48 square miles (200.67 km2). The water area for the city is 3.55 square miles or 9.19 km2. There is one unique zip code in Houghton Lake, Michigan and it is 48629. The area code(s) for Houghton Lake is 989.
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