Great Falls is the third most populous city in the U.S. state of Montana and the county seat of Cascade County. The population was 60,442 according to the 2020 census. The city covers an area of and is the principal city of the Great Falls, Montana, Metropolitan Statistical Area, which encompasses all of Cascade County. The Great Falls MSA’s population stood at 84,414 in the 2020 census.
A cultural, commercial and financial center in the central part of the state, Great Falls is located just east of the Rocky Mountains and is bisected by the Missouri River. It is from the east entrance to Glacier National Park in northern Montana, and from Yellowstone National Park in southern Montana and northern Wyoming. A north–south federal highway, Interstate 15, serves the city.
Great Falls is named for a series of five waterfalls located on the Missouri River north and east of the city. The Lewis and Clark Expedition of 1805–1806 was forced to portage around a stretch of the river in orde