Idaho Falls is the fourth most populous city in Idaho and the county seat of Bonneville County. It is the state's most populous city outside the Boise metropolitan area. As of the 2020 census, the population of Idaho Falls was 64,818. In the 2010 census, the population of Idaho Falls was 56,813, with a metro population of 133,265.
AdMake the most of each moment when you travel. Skip the hassle and book in advance. Find the best experiences, tours, and activities for your trip with GetYourGuide.
Site visitors: Over 1M in the past month
Multiple languages · Top attraction tickets · No cancellation fees · Best value guarantee