High School Graduate or Higher (5-year estimate) in Logan County, IL was 91.50% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Logan County, IL reached a record high of 91.50 in January of 2022 and a record low of 84.90 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in Logan County, IL - last updated from the United States Federal Reserve on May of 2024.