Estimate, Median Age by Sex, Total Population (5-year estimate) in Phelps County, NE was 40.40000 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 Phelps County, NE reached a record high of 43.90000 in January of 2012 and a record low of 40.40000 in January of 2022. 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 Phelps County, NE - last updated from the United States Federal Reserve on May of 2024.