| ZIP Codes: | 6 ZIP Codes (6 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 605 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:42 PM |
| Population: | 1,203 [See All] |
| FIPS: | 46039 |
| Land Area: | 584 sq mi |
| Water Area: | 11 sq mi |
| Coordinates: | 44.4865, -96.3873 |
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4,119 residents live across 6 ZIPs covering 584 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 4,547 to 4,119 from 2014 to 2024 — a -9.4% change. 1 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 57237 (Gary, $87,153 median) and poorest ZIP 57238 (Goodwin, $66,250) are 15.4 miles apart — a 1.3× income gap across local geography.
Median home values vary 1.5× across this county — from $161,500 in 57237 (Gary) to $235,900 in 57268 (Toronto).
Density varies 4× across the county — from 3 people/sq mi in 57218 (Brandt) to 10 in 57226 (Clear Lake).
Educational attainment ranges from 14.9% bachelor's+ in 57268 (Toronto) to 27.0% in 57226 (Clear Lake) — the breadth of educational profiles across the area.
Within South Dakota, this is the #90 most populous of 93 counties and ranks #77 for median household income with the #4 fastest decade growth .
Weighted by population, the typical household earns about $80,940 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.2% of adults age 25+ hold a bachelor's degree or higher (653 of 2,809 reporting).
6 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.