High School Graduate or Higher for Oklahoma was 89.60% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher for Oklahoma reached a record high of 89.60 in January of 2022 and a record low of 84.30 in January of 2006. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher for Oklahoma - last updated from the United States Federal Reserve on April of 2024.