Harrison Township is a township in Gloucester County, New Jersey, United States. As of the 2010 United States Census, the township's population was 12,417, reflecting an increase of 3,629 (+41.3%) from the 8,788 counted in the 2000 Census, which had in turn increased by 4,073 (+86.4%) from the 4,715 counted in the 1990 Census.Harrison Township was originally formed as Spicer Township by an act of the New Jersey Legislature on March 13, 1844, from portions of Greenwich Township and Woolwich Township. That name lasted for less than a year, with Harrison Township adopted as of April 1, 1845. The township was named for President William Henry Harrison.Harrison is a dry township where alcohol cannot be sold.GeographyAccording to the United States Census Bureau, the township had a total area of 19.228 square miles (49.798 km2), including 19.141 square miles (49.574 km2) of land and 0.087 square miles (0.224 km2) of water (0.45%).Mullica Hill is an unincorporated community and census-designated place (CDP) located within Harrison Township that had a 2010 Census population of 3,982. Richwood is a CDP that is in portions of both Harrison Township and Mantua Township, which had a 2010 population of 3,459, of which 3,400 were in Harrison Township and 59 in Mantua Township.
