All Employees: Administrative and Support Services in Illinois was 407.60000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, All Employees: Administrative and Support Services in Illinois reached a record high of 431.50000 in January of 2022 and a record low of 221.40000 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Administrative and Support Services in Illinois - last updated from the United States Federal Reserve on April of 2024.