All Employees: Professional and Business Services in the District of Columbia was 175.50000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, All Employees: Professional and Business Services in the District of Columbia reached a record high of 175.50000 in January of 2023 and a record low of 108.20000 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Professional and Business Services in the District of Columbia - last updated from the United States Federal Reserve on April of 2024.