Resident Population in Scott County, MO was 37.88900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Scott County, MO reached a record high of 40.91600 in January of 2009 and a record low of 33.25000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Scott County, MO - last updated from the United States Federal Reserve on May of 2024.