Resident Population in Carter County, MO was 5.30300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Carter County, MO reached a record high of 6.34200 in January of 2013 and a record low of 3.87800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Carter County, MO - last updated from the United States Federal Reserve on May of 2024.