Allentown is a borough, located in western Monmouth County, in the U.S. state of New Jersey, bordering nearby Mercer County. As of the 2020 United States census, the borough's population was 1,734, a decrease of 94 (−5.1%) from the 2010 census count of 1,828, which in turn reflected a decline of 54 (−2.9%) from the 1,882 counted in the 2000 census. The borough is nestled within central New Jersey, and is roughly equidistant between New York City and Philadelphia.
Zip Codes in Allentown, NJ that we also serve: 08501