Fond Du Lac County, WI - High School Graduate or Higher (5-year estimate) in Fond du Lac County, WI was 92.50% in January of 2022, according to the United States Federal Reserve. Historically, Fond Du Lac County, WI - High School Graduate or Higher (5-year estimate) in Fond du Lac County, WI reached a record high of 92.50 in January of 2022 and a record low of 88.50 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Fond Du Lac County, WI - High School Graduate or Higher (5-year estimate) in Fond du Lac County, WI - last updated from the United States Federal Reserve on May of 2024.