 By 1850,the name was shortened to Hainesport.Hainesport Township was incorporated as a township by an act of the New Jersey Legislature on March 12, 1924, from portions of Lumberton Township.According to the United States Census Bureau, the township had a total area of 6.723 square miles (17.414 km2), including 6.459 square miles (16.730 km2) of land and 0.264 square miles (0.685 km2) of water (3.93%).