Resident Population in Knox County, KY was 29.79400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Knox County, KY reached a record high of 32.74700 in January of 2009 and a record low of 23.68900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Knox County, KY - last updated from the United States Federal Reserve on May of 2024.