Resident Population in Kiowa County, OK was 8.39800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Kiowa County, OK reached a record high of 13.28300 in January of 1983 and a record low of 8.34500 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Kiowa County, OK - last updated from the United States Federal Reserve on May of 2024.