Resident Population in Phillips County, AR was 14.96100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Phillips County, AR reached a record high of 40.04600 in January of 1970 and a record low of 14.96100 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Phillips County, AR - last updated from the United States Federal Reserve on May of 2024.