High School Graduate or Higher for Illinois was 90.40% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher for Illinois reached a record high of 90.40 in January of 2020 and a record low of 85.00 in January of 2006. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher for Illinois - last updated from the United States Federal Reserve on April of 2024.