Underwood, IA population, income and ZIP codes

Underwood city is a very small community in Iowa, with 977 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #295 of 1,026 ranked by population — larger than 71% of them. The median age here is 29.5 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 Underwood city earn a median of $90,556 a year, 15.3% above the national figure of $78,538 and 34% above the $67,791 median for the 290 Iowa cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 2.5% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Underwood city is valued at $227,400, 25% below the national figure and 45% above the $156,300 peer median, while median gross rent runs $819 a month, 41.7% below the national figure, or roughly $9,828 across a full year. A household on the local median income would put about 10.9% 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 2.5×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 80.7% 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. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

A median age of 29.5 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address. With 977 residents, a handful of survey responses moves every median on this page. Compare Underwood city against its county rather than against national figures.

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.