High School Graduate or Higher (5-year estimate) in Sioux County, ND was 85.90% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Sioux County, ND reached a record high of 86.20 in January of 2017 and a record low of 78.20 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in Sioux County, ND - last updated from the United States Federal Reserve on May of 2024.