Premature Death Rate for Lewis and Clark County, MT was 470.40000 Rate per 100,000 in January of 2020, according to the United States Federal Reserve. Historically, Premature Death Rate for Lewis and Clark County, MT reached a record high of 470.40000 in January of 2020 and a record low of 317.40000 in January of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Premature Death Rate for Lewis and Clark County, MT - last updated from the United States Federal Reserve on May of 2024.