High School Graduate or Higher (5-year estimate) in Lewis and Clark County, MT was 95.00% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Lewis and Clark County, MT reached a record high of 95.60 in January of 2019 and a record low of 94.30 in January of 2014. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in Lewis and Clark County, MT - last updated from the United States Federal Reserve on May of 2024.