Resident Population in Lewis and Clark County, MT

Resident Population in Lewis and Clark County, MT was 75.12900 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Lewis and Clark County, MT reached a record high of 75.12900 in January of 2024 and a record low of 33.28100 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lewis and Clark County, MT - last updated from the United States Federal Reserve on April of 2026.



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