Estimate, Median Age by Sex, Total Population (5-year estimate) in New York County, NY was 38.50000 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 New York County, NY reached a record high of 38.50000 in January of 2022 and a record low of 36.30000 in January of 2010. 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 New York County, NY - last updated from the United States Federal Reserve on May of 2024.