Hamilton Township is a township in Mercer County, New Jersey, United States. The township is within the New York metropolitan area as defined by the United States Census Bureau, but directly borders the Philadelphia metropolitan area and is part of the Federal Communications Commission’s Philadelphia Designated Market Area. As of the 2010 United States Census, the township had a total population of 88,464, reflecting an increase of 1,355 (+1.6%) from the 87,109 counted in the 2000 Census, which had in turn increased by 556 (+0.6%) from the 86,553 counted in the 1990 Census. The township was the state’s 9th-largest municipality, after having been ranked 10th in 2000. The township is located immediately east of the city of Trenton, the state’s capital.

Hamilton was incorporated as a township by an act of the New Jersey Legislature on April 11, 1842, from portions of the now-defunct Nottingham Township. Portions of the township were taken to form Chambersburg borough (April 1, 1872, annexed by Trenton in 1888) and Wilbur borough (April 24, 1891, annexed by Trenton in 1898).  Hamilton Township derives its name from the village of Hamilton Square, which might have been named for Alexander Hamilton.

In 2006, Hamilton Township was ranked by Morgan Quitno as the eighteenth-safest city in the United States, out of 369 cities nationwide. In the company’s 2005 survey, the Township was ranked 15th safest of 354 cities surveyed nationwide.

Source: Wikipedia