Estimate, Median Age by Sex, Total Population (5-year estimate) in Magoffin County, KY was 41.40000 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 Magoffin County, KY reached a record high of 42.30000 in January of 2019 and a record low of 37.80000 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 Magoffin County, KY - last updated from the United States Federal Reserve on May of 2024.