Power County is a county located in the U.S. state of Idaho. As of the 2020 Census, the county had a population of 7,878. The county seat and largest city is American Falls. The county was created by the Idaho Legislature on January 30, 1913, by a partition of Cassia County. It is named for an early hydroelectric power plant (1902) at the American Falls.
Power County Courthouse, American Falls
An aerial view of the Power County wind farm in Power County
American Falls is a city in and the county seat of Power County, Idaho, United States. The population was 4,457 at the time of the 2010 census.
Power County Courthouse (2007)
Looking southeast across American Falls, Snake River, 1923
Looking downstream, American Falls, Snake River, 1923