Estimate, Median Age by Sex, Total Population (5-year estimate) in Scott County, MO was 39.40000 Years of Age in January of 2022, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Scott County, MO reached a record high of 40.10000 in January of 2020 and a record low of 38.10000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in Scott County, MO - last updated from the United States Federal Reserve on May of 2024.