Resident Population in Duplin County, NC was 49.52000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Duplin County, NC reached a record high of 59.44900 in January of 2012 and a record low of 38.01500 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Duplin County, NC - last updated from the United States Federal Reserve on May of 2024.