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is a Walsh Act Township in Ocean County, New Jersey, United States. As of the United States 2000 Census, the township population was 3,329.
Long Beach Township was incorporated as a township by an Act of the New Jersey Legislature on March 23, 1899, from portions of Eagleswood Township, Little Egg Harbor Township, Ocean Township, Stafford Township, Union Township (now Barnegat Township). Portions of the township were taken to form Barnegat City (March 29, 1904, now Barnegat Light) and Ship Bottom-Beach Arlington (March 3, 1925, now Ship Bottom).
North Beach Haven is a census-designated place and unincorporated area located within Long Beach Township. Other communities within Long Beach Township include Beach Haven Crest, Beach Haven Gardens, Beach Haven Inlet, Beach Haven Park, Beach Haven Terrace, Brant Beach, Brighton Beach, Haven Beach, High Bar Harbor, Holgate, Loveladies, North Beach, North Beach Haven, Peahala Park, South Beach Haven, Spray Beach, and the Dunes.
According to the United States Census Bureau, the township has a total area of 22.0 square miles (57.0 km²). 5.3 square miles (13.8 km²) of it is land and 16.7 square miles (43.2 km²) of it (75.90% ) is water.
The township is divided into four discontiguous land areas. The most populous, with most of the named places, is located north of Beach Haven and south of Ship Bottom. The Holgate section is south of Beach Haven; most of it is a wildlife preserve. Loveladies and High Bar Harbor form the northernmost, between Harvey Cedars and Barnegat Light. North Beach and Frazier Park north of Surf City and south of Harvey Cedars.