Resident Population in Hardin County, KY was 112.27300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Hardin County, KY reached a record high of 112.27300 in January of 2023 and a record low of 69.60000 in January of 1973. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Hardin County, KY - last updated from the United States Federal Reserve on May of 2024.