American Falls is a city located in Idaho. With a 2020 population of 4,291, it is the 36th largest city in Idaho and the 5193rd largest city in the United States. American Falls is currently declining at a rate of -0.88% annually and its population has decreased by -3.72% since the most recent census, which recorded a population of 4,457 in 2010. American Falls reached it's highest population of 4,474 in 2010. Spanning over 2 miles, American Falls has a population density of 2,659 people per square mile.
The average household income in American Falls is $55,848 with a poverty rate of 8.00%. The median rental costs in recent years comes to $574 per month, and the median house value is $128,000. The median age in American Falls is 35.3 years, 38.6 years for males, and 33.7 years for females. For every 100 females there are 90.9 males.