High School Graduate or Higher (5-year estimate) in Delta County, CO was 90.00% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Delta County, CO reached a record high of 90.70 in January of 2019 and a record low of 86.00 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in Delta County, CO - last updated from the United States Federal Reserve on May of 2024.