Cliffwood Beach is an unincorporated community and census-designated place (CDP) located within Aberdeen Township in Monmouth County, in the U.S. state of New Jersey. As of the 2010 U.S. census, the CDP's population was 3,194.

Aberdeen Township is a township situated on the Jersey Shore in Monmouth County, in the U.S. state of New Jersey. The township is located within the Raritan Valley region and is a part of the New York Metropolitan Area, bordering both Old Bridge Township, New Jersey, in adjacent Middlesex County, New Jersey, as well as Staten Island in New York City. As of the 2020 United States census, the township's population was 19,329, its highest decennial count ever and an increase of 1,119 (+6.1%) from the 2010 census count of 18,210, which had in turn reflected an increase of 756 (+4.3%) from the 17,454 recorded at the 2000 census.