Contoocook, NH is a city located in Merrimack County, New Hampshire and has a land area of 43.32 square miles (112.20 km2). The water area for the city is 1.79 square miles or 4.64 km2. There is one unique zip code in Contoocook, New Hampshire and it is 03229. The area code(s) for Contoocook is 603.
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