Resident Population in Hart County, KY was 19.72400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Hart County, KY reached a record high of 19.72400 in January of 2023 and a record low of 13.98000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Hart County, KY - last updated from the United States Federal Reserve on May of 2024.