Bachelor's Degree or Higher (5-year estimate) in Mercer County, IL was 17.90% in January of 2022, according to the United States Federal Reserve. Historically, Bachelor's Degree or Higher (5-year estimate) in Mercer County, IL reached a record high of 18.70 in January of 2017 and a record low of 14.00 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Bachelor's Degree or Higher (5-year estimate) in Mercer County, IL - last updated from the United States Federal Reserve on June of 2024.