South Harrison Township is a township in Gloucester County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 3,395,
South Harrison was formed as a township by an act of the New Jersey Legislature on March 2, 1883, from portions of Harrison Township. Elk Township was formed from portions of South Harrison Township on April 17, 1891. It is a dry town, where alcohol cannot be sold, though alcohol is available at the winery in the township.
Geography
According to the U.S. Census Bureau, the township had a total area of 15.96 square miles (41.32 km<sup>2</sup>), including 15.90 square miles (41.17 km<sup>2</sup>) of land and 0.06 square miles (0.15 km<sup>2</sup>) of water (0.38%).
The township borders the municipalities of Elk Township, Harrison Township, and Woolwich Township in Gloucester County; and Pilesgrove Township and Upper Pittsgrove Township in Salem County.