The county in which Sun River Montana is located is ranked as the what most populous county in Montana?
Cascade County, Montana Cascade County ("cascade" means "waterfall" in French) is a county located in the U.S. state of Montana. As of the 2010 census, the population was 81,327, making it the fifth-most populous county in Montana. Its county seat is Great Falls.
Livingston, Montana Livingston is a city and the county seat of Park County, Montana, United States. Livingston is located in southwestern Montana, on the Yellowstone River, north of Yellowstone National Park. The population was 7,044 at the 2010 census.