Humboldt, SD population, income and ZIP codes

Humboldt town is a very small community in South Dakota, with 674 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #119 of 485 ranked by population — larger than 75% of them. The median age here is 31.8 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 Humboldt town earn a median of $97,292 a year, 23.9% above the national figure of $78,538 and 49% above the $65,500 median for the 79 South Dakota 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 0.6% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Humboldt town is valued at $209,200, 31% below the national figure and 9% above the $192,800 peer median, while median gross rent runs $713 a month, 49.3% below the national figure, or roughly $8,556 across a full year. A household on the local median income would put about 8.8% 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. 88% 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 674 residents, a handful of survey responses moves every median on this page. Compare Humboldt town 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.