Resident Population in Perry County, MO was 18.95000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Perry County, MO reached a record high of 19.28400 in January of 2018 and a record low of 14.39300 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Perry County, MO - last updated from the United States Federal Reserve on May of 2024.