Estimate, Median Age by Sex, Total Population (5-year estimate) in Barton County, KS was 39.20000 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 Barton County, KS reached a record high of 40.60000 in January of 2009 and a record low of 38.80000 in January of 2021. 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 Barton County, KS - last updated from the United States Federal Reserve on May of 2024.