High School Graduate or Higher (5-year estimate) in McCook County, SD was 92.60% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in McCook County, SD reached a record high of 92.60 in January of 2012 and a record low of 87.70 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in McCook County, SD - last updated from the United States Federal Reserve on June of 2024.