Allentown is a Borough in Monmouth County, New Jersey. Its population at the 2010 census was 1,828. The borough received the 'Village Center' designation in 2002.
The borough has a total area of 0.6 square miles, of which 0.6 square miles is land and 0.04 square miles (0.10 km2) is water. CR 524, CR 526 and CR 539 are the major roads that pass through the borough. Princeton and Trenton are easily accessible from Allentown via I-195.