Estimate, Median Age by Sex, Total Population (5-year estimate) in Brule County, SD was 41.50000 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 Brule County, SD reached a record high of 41.80000 in January of 2014 and a record low of 39.00000 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 Brule County, SD - last updated from the United States Federal Reserve on May of 2024.