There were 20,250 housing units at an average density of 2,232.4 per square mile (861.9/km 2).

The population densitywas 6,244.3 per square mile (2,410.9/km 2). Unincorporated communities, localities and place names located partially or completely within the township include Battle Hill, Connecticut Farms, Galloping Hill, Headlentown, Putnam Manor, Salem, Townley and Vauxhall.Īs of the 2010 United States Census, there were 56,642 people, 19,556 households, and 14,276 families residing in the township. Northwest of the township lies Millburn, to the north lies Maplewood and to the northeast lies Irvington, all in Essex County. The Township of Union is located on the northern-central edge of Union County and is bordered by eight municipalities: Hillside to the east, Elizabeth to the southeast, Roselle Park and Kenilworth to the south and Springfield Township to the west. Portions of the township have been taken to form Linden Township (March 4, 1861), Roselle Park, (March 22, 1901), Kenilworth (May 13, 1907) and Hillside (April 3, 1913). In 1946, a group of residents pushed for the township’s name to be changed to “Connecticut Farms”, citing the potential benefits to area residents and businesses from the broad awareness of the historical significance of the name. It became part of the newly formed Union County on March 19, 1857. Union Township was incorporated as a township by an act of the New Jersey Legislature on November 23, 1808, from portions of Elizabeth Township, while the area was still part of Essex County. They were wrong on both counts and were unable to make their way to and through the Hobart Gap. They also expected the citizens of New Jersey to welcome them. They expected the Continental Army to give little resistance, believing that they were tired of the war and were poorly fed and paid. At midnight, 5,000 troops started to land. On June 6, 1780, British troops, led by Hessian General Wilhelm von Knyphausen, boarded boats on Staten Island bound for Elizabeth, New Jersey. Union Township was the site of the Battle of Connecticut Farms, one of the last battles between British and American forces during the American Revolutionary War. As of the 2010 United States Census, the township population was 56,642, the highest recorded in any decennial census, reflecting an increase of 2,237 (+4.1%) from the 54,405 counted in the 2000 Census, which had in turn increased by 4,381 (+8.8%) from the 50,024 counted in the 1990 Census. In the 18th century, the area that is now Union was then called Connecticut Farms. Union Township is a township in Union County, New Jersey, United States.

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