American Falls, ID population, income and ZIP codes

American Falls city is a small town in Idaho, with 4,636 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #37 of 236 ranked by population — larger than 84% of them. The median age here is 32.5 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in American Falls city earn a median of $58,376 a year, 25.7% below the national figure of $78,538 and 9% below the $63,864 median for the 100 Idaho cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 7.1% of residents here, below the 12.4% national rate.

The typical owner-occupied home in American Falls city is valued at $172,800, 43% below the national figure and 36% below the $271,500 peer median, while median gross rent runs $710 a month, 49.5% below the national figure, or roughly $8,520 across a full year. A household on the local median income would put about 14.6% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 75.1% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.