Resident Population in Estill County, KY was 14.00200 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Estill County, KY reached a record high of 15.36800 in January of 1998 and a record low of 12.75200 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Estill County, KY - last updated from the United States Federal Reserve on April of 2026.