Resident Population in Greene County, MO was 304.61100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Greene County, MO reached a record high of 304.61100 in January of 2023 and a record low of 152.92900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Greene County, MO - last updated from the United States Federal Reserve on May of 2024.