Resident Population in Carroll County, MO was 8.39100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Carroll County, MO reached a record high of 12.60000 in January of 1971 and a record low of 8.39100 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Carroll County, MO - last updated from the United States Federal Reserve on May of 2024.