Unemployment Rate in Lewis and Clark County, MT was 3.40% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Lewis and Clark County, MT reached a record high of 10.30 in April of 2020 and a record low of 1.80 in September of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Lewis and Clark County, MT - last updated from the United States Federal Reserve on May of 2024.