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Hackettstown is a town in Warren County, New Jersey, United States. As of the 2010 United States Census, the town's population was 9,724, reflecting a decline of 679 (-6.5%) from the 10,403 counted in the 2000 Census, which had in turn increased by 2,283 (+28.1%) from the 8,120 counted in the 1990 Census. The town is located in the easternmost region of the Lehigh Valley.Hackettstown was incorporated as a town by an act of the New Jersey Legislature on March 9, 1853, from portions of Independence Township. Portions of territory were exchanged with Mansfield Township in 1857, 1860, 1872 and 1875.Hackettstown houses the headquarters of Mars Chocolate USA, the American division of Mars, Incorporated, makers of Milky Way, Mars, M&M's, Twix and Snickers candy bars, as well as pet foods (such as the well-known Whiskas and Pedigree brands), human foods (including Uncle Ben's) and non-confectionery snack foods (including Combos).Hackettstown is in New Jersey (NJ). Whether you only want to go to Hackettstown, or have a whole adventure planned, Inspirock has you covered with our user-friendly United States day trip planning site .
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