All Employees: Government: U.S. Postal Service in Massachusetts was 15.05716 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, All Employees: Government: U.S. Postal Service in Massachusetts reached a record high of 27.19327 in June of 1990 and a record low of 14.90336 in December of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Government: U.S. Postal Service in Massachusetts - last updated from the United States Federal Reserve on March of 2024.