Berkeley Township was incorporated as a township by an act of the New Jersey Legislature on March 31, 1875, from portions of Dover Township (now Toms River Township). Sections of the township were taken to form Seaside Park (March 3, 1898), Seaside Heights (February 6, 1913), Beachwood (March 22, 1917), Ocean Gate (February 28, 1918) Pine Beach (February 26, 1925), South Toms River (March 28, 1927) and Island Beach (June 23, 1933, reabsorbed into Berkeley Township in 1965). The township was named for John Berkeley, 1st Baron Berkeley of Stratton, one of the founders of the Province of New Jersey.