High School Graduate or Higher (5-year estimate) in King County, WA was 93.80% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in King County, WA reached a record high of 93.80 in January of 2022 and a record low of 91.90 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 King County, WA - last updated from the United States Federal Reserve on May of 2024.