Marquette, IA population, income and ZIP codes

Marquette city is a very small community in Iowa, with 432 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #504 of 1,026 ranked by population — larger than 50% of them. The median age here is 48.2 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. 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 Marquette city earn a median of $38,125 a year, 51.5% below the national figure of $78,538 and 44% below 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 19.7% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Marquette city is valued at $137,000, 54.8% below the national figure and 12% below the $156,300 peer median, while median gross rent runs $696 a month, 50.5% below the national figure, or roughly $8,352 across a full year. A household on the local median income would put about 21.9% 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 3.6×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 66% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

With 432 residents, a handful of survey responses moves every median on this page. Compare Marquette city against its county rather than against national figures.

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.