All Employees: Information: Telecommunications in Illinois was 22.80000 Thous. of Persons in January of 2021, according to the United States Federal Reserve. Historically, All Employees: Information: Telecommunications in Illinois reached a record high of 50.30000 in January of 2001 and a record low of 22.80000 in January of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for All Employees: Information: Telecommunications in Illinois - last updated from the United States Federal Reserve on April of 2024.