is a Borough in Mercer County, New Jersey, United States. As of the United States 2000 Census, the borough population was 2,696.
Pennington was established as a borough by an Act of the New Jersey Legislature on January 31, 1890, from portions of Hopewell Township, based on the results of a referendum held on January 21, 1890.
According to the United States Census Bureau, the borough has a total area of 1.0 square miles (2.5 km
Pennington is an independent municipality surrounded by Hopewell Township.