Allenwood, NJ is a city located in Monmouth County, New Jersey and has a land area of 2.64 square miles (6.84 km2). The water area for the city is 0.04 square miles or 0.10 km2. There is one unique zip code in Allenwood, New Jersey and it is 08720. The area code(s) for Allenwood is 732/848.
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