Estimate, Median Age by Sex, Total Population (5-year estimate) in Berkshire County, MA was 47.80000 Years of Age in January of 2023, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Berkshire County, MA reached a record high of 47.80000 in January of 2023 and a record low of 43.60000 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 Berkshire County, MA - last updated from the United States Federal Reserve on September of 2025.