Grenville, SD population, income and ZIP codes

Grenville town is a very small community in South Dakota, with 70 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #338 of 485 ranked by population — larger than 30% of them. The median age here is 57.7 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 Grenville town earn a median of $83,125 a year, 5.8% above the national figure of $78,538 and 27% 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 17.1% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Grenville town is valued at $43,100, 85.8% below the national figure and 78% below the $192,800 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 0.5×, 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. 94.3% 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. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

A median age of 57.7 puts Grenville town well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages. Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

The Census withheld gross rent for Grenville 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.