Estimate, Median Age by Sex, Total Population (5-year estimate) in Roger Mills County, OK was 42.00000 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 Roger Mills County, OK reached a record high of 43.60000 in January of 2009 and a record low of 40.20000 in January of 2016. 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 Roger Mills County, OK - last updated from the United States Federal Reserve on May of 2024.