Matawan, NJ is a city located in Monmouth County, New Jersey and has a land area of 12.79 square miles (33.13 km2). The water area for the city is 0.33 square miles or 0.85 km2. There is one unique zip code in Matawan, New Jersey and it is 07747. The area code(s) for Matawan is 732/848.
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