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is a Township in Somerset County, New Jersey, United States. As of the United States 2000 Census, the township population was 14,259.
Warren was originally inhabited by the Lenape Native Americans and was settled in the 1720s by European farmers. As early as 1980, it became a refuge for wealthy residents looking to escape nearby New York City. Warren was incorporated as a township by an Act of the New Jersey Legislature on March 5, 1806, from portions of Bernards Township and Bridgewater Township. Portions of the township were taken to from North Plainfield Township as of April 2, 1872. Warren is named for American Revolutionary War patriot, General Joseph Warren, who was killed at the Battle of Bunker Hill.
According to the United States Census Bureau, the township has a total area of 19.7 square miles (50.9 km²). All of it is land and with the exception of a few private ponds, none of the area is covered with water.