Long Beach Island is approximately 18 miles in length, which includes three miles of nature reserve located on the southern tip. The island is about a half-mile wide at its widest point in Ship Bottom, and spans a fifth of a mile at its narrowest point in Harvey Cedars.
There are six separate municipalities on Long Beach Island (with Long Beach Township breaking into multiple neighborhoods). From the bridge northward, the island includes the communities of Surf City, North Beach (a section of Long Beach Township), Harvey Cedars, Loveladies (the northernmost section of Long Beach Township), High Bar Harbor, and Barnegat Light. From the bridge southward, the island includes the communities of Long Beach Township (including the census-designated place of North Beach Haven) and Beach Haven, with the Holgate section of Long Beach Township at the southernmost tip of the island.
Long Beach Township neighborhoods include Brant Beach, Beach Haven Crest, Brighton Beach, Peahala Park, Beach Haven Park, Haven Beach, The Dunes, Beach Haven Terrace, Beach Haven Gardens, Spray Beach, North Beach Haven