Resident Population in Newton County, AR was 7.07100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Newton County, AR reached a record high of 8.62300 in January of 2000 and a record low of 5.84400 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Newton County, AR - last updated from the United States Federal Reserve on May of 2024.