Riverdale, IA population, income and ZIP codes

Riverdale city is a very small community in Iowa, with 408 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #521 of 1,026 ranked by population — larger than 49% of them. The median age here is 42 years against 39.1 nationally, a slightly older profile than the country as a whole. 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 Riverdale city earn a median of $88,500 a year, 12.7% above the national figure of $78,538 and 31% above the $67,791 median for the 290 Iowa cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 3.9% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Riverdale city is valued at $270,000, 11% below the national figure and 73% above the $156,300 peer median, while median gross rent runs $1,705 a month, 21.3% above the national figure, or roughly $20,460 across a full year. A household on the local median income would put about 23.1% 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 3.1×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 81.9% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. 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.

With 408 residents, a handful of survey responses moves every median on this page. Compare Riverdale city against its county rather than against national figures.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. 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.