All Employees: Health Care: Ambulatory Health Care Services in Illinois was 278.30000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, All Employees: Health Care: Ambulatory Health Care Services in Illinois reached a record high of 278.30000 in January of 2023 and a record low of 119.90000 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Health Care: Ambulatory Health Care Services in Illinois - last updated from the United States Federal Reserve on April of 2024.