Resident Population in Howell County, MO was 40.73500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Howell County, MO reached a record high of 40.73500 in January of 2023 and a record low of 23.52100 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Howell County, MO - last updated from the United States Federal Reserve on May of 2024.