Estimate, Median Age by Sex, Total Population (5-year estimate) in Payne County, OK was 27.20000 Years of Age in January of 2022, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Payne County, OK reached a record high of 27.50000 in January of 2021 and a record low of 26.10000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in Payne County, OK - last updated from the United States Federal Reserve on May of 2024.