Jackson Township, named after Andrew Jackson, is a township in Ocean County, New Jersey, United States. As of the 2010 United States Census, the township population was 54,856. The population increased by 12,040 (+28.1%) from the 42,816 counted in the 2000 Census, which had in turn increased by 9,583 (+28.8%) from the 33,233 counted in the 1990 Census. The 2010 population was the highest recorded in any decennial census. A portion of the township is located within the New Jersey Pine Barrens.
Jackson is the site of Six Flags Great Adventure, home to the 456-foot (139 m) Kingda Ka, which as of 2018 is the tallest roller coaster in the world. Jackson is also home to Six Flags Hurricane Harbor and the 350-acre (140 ha) Safari Off Road Adventure, which replaced Six Flags Wild Safari in 2013.
Jackson Township was incorporated as a township by an act of the New Jersey Legislature on March 6, 1844, from portions of Dover Township (now Toms River Township), Freehold Township and Upper Freehold Township, while the area was still part of Monmouth County. It became part of the newly created Ocean County on February 15, 1850. Portions of the township were taken to form Plumsted Township on March 11, 1845.
According to the United States Census Bureau, the township had a total area of 100.624 square miles (260.616 km2), including 99.244 square miles (257.041 km2) of land and 1.380 square miles (3.575 km2) of water (1.37%). Jackson is the largest municipality by area in Ocean County.
Vista Center (with a 2010 population of 2,095) is an unincorporated community and census-designated place (CDP) located within Jackson Township. Other unincorporated communities, localities and populated places located completely or partially within the township include Archers Corner, Bennetts Mills, Burksville, Butterfly Bridge, Cassville, Colliers Mills, DeBow Corner, Francis Mills, Grayville, Harmony, Holmansville, Holmeson, Hyson, Jackson Mills, Kapps Corner, Leesville, Legler, Maryland, Midwood, New Prospect, Pleasant Grove, Prospertown, Ridgeway State Forest, Success, The Alligator, Van Hiseville, Webbsville, Whitesbridge and Whitesville.
The township borders Lakewood Township, Manchester Township, Plumsted Township and Toms River Township in Ocean County, and Freehold Township, Howell Township, Millstone Township and Upper Freehold Township in Monmouth County.
Colliers Mills Wildlife Management Area is a 12,906.63-acre (5,223.13 ha) wildlife management area located within portions of both Jackson Township and Plumsted Township operated by the New Jersey Department of Environmental Protection's Division of Fish and Wildlife.