Barnegat Light is a borough in Ocean County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 574, reflecting a decline of 190 (−24.9%) from the 764 counted in the 2000 Census, which had in turn increased by 89 (+13.2%) from the 675 counted in the 1990 Census. The borough borders the Atlantic Ocean on Long Beach Island and is home to Barnegat Lighthouse.