Estimate, Median Age by Sex, Total Population (5-year estimate) in District of Columbia, DC was 34.10000 Years of Age in January of 2020, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in District of Columbia, DC reached a record high of 35.40000 in January of 2009 and a record low of 33.70000 in January of 2014. 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 District of Columbia, DC - last updated from the United States Federal Reserve on April of 2024.