Duplin -- U.S. County in North Carolina Population (2000): 49063 Housing Units (2000): 20520 Land area (2000): 817.727702 sq. miles (2117.904936 sq. km) Water area (2000): 1.382153 sq. miles (3.579760 sq. km) Total area (2000): 819.109855 sq. miles (2121.484696 sq. km) Located within: North Carolina (NC), FIPS 37 Location: 34.924123 N, 77.988007 W Headwords: Duplin Duplin, NC Duplin County Duplin County, NC