Oacoma, SD population, income and ZIP codes

Oacoma town is a very small community in South Dakota, with 505 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #146 of 485 ranked by population — larger than 70% of them. The median age here is 45.8 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 Oacoma town earn a median of $70,250 a year, 10.6% below the national figure of $78,538 and 7% above the $65,500 median for the 79 South Dakota cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 4.8% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Oacoma town is valued at $165,800, 45.4% below the national figure and 14% below the $192,800 peer median, while median gross rent runs $847 a month, 39.8% below the national figure, or roughly $10,164 across a full year. A household on the local median income would put about 14.5% 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 2.4×, 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. 79.2% 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 505 residents, a handful of survey responses moves every median on this page. Compare Oacoma town 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.