According to the United States Census Bureau, the borough had a total area of 1.450 square miles (3.756 km2), including 1.057 square miles (2.737 km2) of land and 0.393 square miles (1.018 km2) of water (27.11%)
Wreck Pond is a tidal pond located on the coast of the Atlantic Ocean, surrounded by Wall Township and the boroughs of Sea Girt, Spring Lake and Spring Lake Heights.