High School Graduate or Higher (5-year estimate) in Lake County, TN was 74.30% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Lake County, TN reached a record high of 74.30 in January of 2022 and a record low of 66.10 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 Lake County, TN - last updated from the United States Federal Reserve on June of 2024.