Resident Population in Jefferson County, GA was 15.18300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Jefferson County, GA reached a record high of 18.40300 in January of 1980 and a record low of 15.18300 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Jefferson County, GA - last updated from the United States Federal Reserve on May of 2024.