Longport is a borough situated on the Jersey Shore on Absecon Island, within Atlantic County, in the U.S. state of New Jersey, on the Atlantic Ocean shoreline. As of the 2020 United States census, the borough's population was 893, a decrease of two people (−0.2%) from the 2010 census count of 895, which in turn reflected a decline of 159 (−15.1%) from the 1,054 counted in the 2000 census.

Absecon Island is a barrier island located on the South Jersey Shore of the Atlantic Ocean in Atlantic County, New Jersey, United States. On the island from north to south are the resort communities of Atlantic City, Ventnor City, Margate City, and Longport, with a total population among the four communities of 53,917 as of the 2020 United States census. The island ends at Absecon Inlet to the north and Great Egg Harbor Inlet to the south.