Resident Population in Finney County, KS was 38.35400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Finney County, KS reached a record high of 42.13400 in January of 2009 and a record low of 19.02900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Finney County, KS - last updated from the United States Federal Reserve on April of 2026.