| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 605 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:41 PM |
| Population: | 15,335 [See All] |
| FIPS: | 46027 |
| CBSA: | Vermillion, SD |
| Land Area: | 406 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 42.9425, -97.0345 |
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15,335 residents live across 4 ZIPs covering 406 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 14,254 to 15,335 from 2014 to 2024 — a +7.6% change. 2 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 57010 (Burbank, $93,611 median) and poorest ZIP 57069 (Vermillion, $53,327) are 8.9 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.6× across this county — from $116,200 in 57073 (Wakonda) to $296,400 in 57010 (Burbank).
Density varies 10× across the county — from 8 people/sq mi in 57073 (Wakonda) to 80 in 57069 (Vermillion).
Educational attainment ranges from 20.1% bachelor's+ in 57037 (Irene) to 48.2% in 57069 (Vermillion) — the breadth of educational profiles across the area.
Within South Dakota, this is the #14 most populous of 82 counties and ranks #47 for median household income with the #18 fastest decade growth .
Weighted by population, the typical household earns about $57,186 across the county — reflecting what a typical resident sees, not a simple ZIP average.
44.0% of adults age 25+ hold a bachelor's degree or higher (3,393 of 7,707 reporting).
4 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.