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is a borough in Hunterdon County, New Jersey, United States. As of the United States 2000 Census, the borough population was 3,776.
High Bridge was originally incorporated as a township by an Act of the New Jersey Legislature on March 29, 1871, from portions of both Clinton Township and Lebanon Township and Bethlehem Township. On February 19, 1898, the borough of High Bridge was incorporated from portions of the township, with the remainder returned to Clinton and Lebanon Townships.
High Bridge Borough is located on the South Branch of the Raritan River in the north central part of Hunterdon County. Water from the South Branch was a valuable power source for one of the first ironworks in the United States, established by William Allen and Joseph Turner of Philadelphia. Allen was the mayor of Philadelphia, a Chief Justice of Pennsylvania, and a prominent landowner in New Jersey. The Central Railroad of New Jersey built a high bridge across the river from which structure the locality ultimately took its name.
According to the United States Census Bureau, the borough has a total area of 2.4 square miles (6.3 km