Sewell (/ˈsuːl/ SOOL) is an unincorporated community within Mantua Township in Gloucester County, New Jersey. It is named for United States Senator William Joyce Sewell. Sewell is served as U.S. Postal Service ZIP code 08080. As of the 2010 U.S. census, the population for ZIP Code Tabulation Area 08080 was 37,433. Sewell is also home to Rowan College of South Jersey.