Houlton, ME is a city located in Aroostook County, Maine and has a land area of 244.63 square miles (633.59 km2). The water area for the city is 1.87 square miles or 4.84 km2. There is one unique zip code in Houlton, Maine and it is 04730. The area code(s) for Houlton is 207.
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