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Warren celebrated its 200th anniversary in 2006. Warren was named for Revolutionary War patriot, General Joseph Warren, who was killed at the Battle of Bunker Hill. The south-eastern half of the original township (which was close to a railroad and contained most of the population) was separated off as North Plainfield Township (since renamed to Green Brook Township) on April 2, 1872. 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. As early as 1900, it became a destination for wealthy residents looking to escape nearby New York City. Warren was originally inhabited by the Lenape Native Americans and was colonized in the 1720s by European farmers. Based on data from the American Community Survey for 2013–2017, Warren Township residents had a median household income of $154,647, ranked 12th in the state among municipalities with more than 10,000 residents, more than double the statewide median of $76,475. The township has been one of the state's highest-income communities. In July 2009, ranked Warren sixth in the nation on its list of "Best Places to Live" in the United States, citing in particular its schools, June carnival (the Lions Club's annual "Expo"), "wide open spaces" (generally 1.5 acres (0.61 ha) per house), 74 "working farms" ("taxed-as-farmland" tracts, but rural, nevertheless), and proximity to New York City. Warren is situated in northeastern Somerset County bordering both Morris (along the Passaic River) and Union counties. As of the 2020 United States census, the township's population was 15,923, an increase of 612 (+4.0%) from the 2010 census count of 15,311, which in turn reflected an increase of 1,052 (+7.4%) from the 14,259 counted in the 2000 census. The township is a bedroom suburb of New York City in the much larger New York metropolitan area, located within the Raritan Valley region. Warren Township is a township in Somerset County, in the U.S.
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