High School Graduate or Higher (5-year estimate) in Benton County, IA was 94.40% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Benton County, IA reached a record high of 94.70 in January of 2020 and a record low of 91.90 in January of 2013. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in Benton County, IA - last updated from the United States Federal Reserve on May of 2024.