Post Falls, ID population, income and ZIP codes

Post Falls city is a small city in Idaho, with 41,716 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #9 of 236 ranked by population — larger than 96% of them. The median age here is 34.6 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Post Falls city earn a median of $73,313 a year, 6.7% below the national figure of $78,538 and 15% above 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 13% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Post Falls city is valued at $425,100, 40.1% above the national figure and 57% above the $271,500 peer median, while median gross rent runs $1,313 a month, 6.6% below the national figure, or roughly $15,756 across a full year. A household on the local median income would put about 21.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 5.8×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 66% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. 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.