Clayton is a borough in Gloucester County, New Jersey, United States. As of the 2020 United States census, the borough's population was 8,807,
Jacob Fisler purchased much of the area that is now Clayton, acquiring of land after the American Revolutionary War. A settlement named Fislertown developed and grew to 36 families by 1812. A glass factory was established in Clayton in the 1850s by one of Fisler's descendants, which contributed to Fislertown's growth.
What is now Clayton was formed as Clayton Township on February 5, 1858, from portions of Franklin Township. Portions of the township were later taken on March 11, 1878, to form Glassboro Township. Clayton was formed as a borough by the New Jersey Legislature on May 9, 1887, from portions of Clayton Township. The remainder of Clayton Township was absorbed by the Clayton on April 14, 1908, and the township was dissolved. Clayton is part of the South Jersey region of the state.
Geography
According to the U.S. Census Bureau, the borough had a total area of 7.26 square miles (18.80 km<sup>2</sup>), including 7.08 square miles (18.32 km<sup>2</sup>) of land and 0.18 square miles (0.48 km<sup>2</sup>) of water (2.53%). Clayton borders Elk Township, Franklin Township, Glassboro, and Monroe Township.