High School Graduate or Higher (5-year estimate) in Lake County, MT was 92.30% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Lake County, MT reached a record high of 93.00 in January of 2020 and a record low of 89.30 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, MT - last updated from the United States Federal Reserve on May of 2024.