Grundy Center, IA population, income and ZIP codes

Grundy Center city is a small town in Iowa, with 2,794 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #130 of 1,026 ranked by population — larger than 87% of them. The median age here is 40.8 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 Grundy Center city earn a median of $77,540 a year, 1.3% below the national figure of $78,538 and 14% above the $67,791 median for the 290 Iowa 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 11% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Grundy Center city is valued at $173,200, 42.9% below the national figure and 11% above the $156,300 peer median, while median gross rent runs $684 a month, 51.4% below the national figure, or roughly $8,208 across a full year. A household on the local median income would put about 10.6% 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 2.2×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 79.8% 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.

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.