Onaka, SD population, income and ZIP codes

Onaka town is a very small community in South Dakota, with 23 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #406 of 485 ranked by population — larger than 16% of them. The median age here is 13.5 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 Onaka town earn a median of not published a year. 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 100% 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 Onaka town is valued at not published, while median gross rent runs not published a month. 100% 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. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

A median age of 13.5 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 23 residents, a handful of survey responses moves every median on this page. Compare Onaka town against its county rather than against national figures.

The Census withheld household income, home value, gross rent for Onaka town because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.