| ZIP Codes: | 8 ZIP Codes (7 Standard, 0 PO Box, 1 Unique) [See All] |
| Area Code: | 605 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:55:00 PM |
| Population: | 19,296 [See All] |
| FIPS: | 46005 |
| CBSA: | Huron, SD |
| Land Area: | 1,299 sq mi |
| Water Area: | 7 sq mi |
| Coordinates: | 44.4164, -98.3122 |
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19,296 residents live across 8 ZIPs covering 1,299 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 17,762 to 19,296 from 2014 to 2024 — a +8.6% change. 6 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 57379 (Virgil, $107,031 median) and poorest ZIP 57384 (Wolsey, $64,063) are 13.3 miles apart — a 1.7× income gap across local geography.
Median home values vary 1.8× across this county — from $139,300 in 57381 (Wessington) to $251,100 in 57324 (Cavour).
Density varies 36× across the county — from 2 people/sq mi in 57381 (Wessington) to 54 in 57350 (Huron).
Educational attainment ranges from 7.7% bachelor's+ in 57324 (Cavour) to 29.5% in 57348 (Hitchcock) — the breadth of educational profiles across the area.
Within South Dakota, this is the #11 most populous of 82 counties and ranks #31 for median household income with the #17 fastest decade growth .
Hosts 1 single-entity Unique ZIP: 57399United States Postal Service .
Weighted by population, the typical household earns about $67,808 across the county — reflecting what a typical resident sees, not a simple ZIP average.
27.0% of adults age 25+ hold a bachelor's degree or higher (3,364 of 12,448 reporting).
7 Standard delivery, 0 PO Box only, 1 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 57350 | Huron | Standard | 16,199 | $66,573 | 301.9 | 7.7% |
| 57384 | Wolsey | Standard | 1,077 | $64,063 | 206.8 | 17.2% |
| 57348 | Hitchcock | Standard | 776 | $83,542 | 270.5 | 52.2% |
| 57381 | Wessington | Standard | 474 | $79,231 | 314.6 | -27.3% |
| 57324 | Cavour | Standard | 410 | $67,019 | 82.7 | 11.7% |
| 57386 | Yale | Standard | 240 | $76,250 | 61.8 | 14.3% |
| 57379 | Virgil | Standard | 120 | $107,031 | 60.6 | 106.9% |
| 57399 | Huron | Unique | — | — | 0.0 | — |