Resident Population in Barton County, KS was 24.89900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Barton County, KS reached a record high of 33.03800 in January of 1982 and a record low of 24.89900 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Barton County, KS - last updated from the United States Federal Reserve on May of 2024.