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is a township in Union County, New Jersey, United States. As of the United States 2000 Census, the township population was 13,407.
by an Act of the New Jersey Legislature on November 8, 1809, from portions of Springfield Township, while the area was still part of Essex County. New Providence Township became part of the newly-formed Union County at its creation on March 19, 1857. Portions of the township were taken on March 23, 1869, to create Summit, and on March 14, 1899, to form the borough of New Providence. On November 6, 1951, the name of the township was changed to
magazine's 2007 Best Places to Live rankings, Berkeley Heights ranked 45th of out of a potential 2,800 places in the United States with populations above 7,500 and under 50,000.
magazine ranked Berkeley Heights as the 59th best place to live in New Jersey in its 2008 rankings of the "Best Places To Live" in New Jersey.
According to the United States Census Bureau, the township has a total area of 6.3 square miles (16.2 km
Berkeley Heights is located partially on the crest of the Second Watchung Mountain and in the Passaic River Valley, aptly named as the Passaic River forms the township's northern border.
Berkeley Heights is located in northwestern Union County, at the confluence of Union, Morris, and Somerset Counties. Berkeley Heights is bordered by New Providence and Summit to the east, Scotch Plains to the southeast, Chatham to the north, Watchung to the south, and Warren Township to the west.