Resident Population in Graham County, KS was 2.37600 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Graham County, KS reached a record high of 4.75100 in January of 1970 and a record low of 2.37600 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Graham County, KS - last updated from the United States Federal Reserve on May of 2024.