| ZIP Codes: | 7 ZIP Codes (5 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 605 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:41 PM |
| Population: | 9,184 [See All] |
| FIPS: | 46023 |
| Land Area: | 1,169 sq mi |
| Water Area: | 53 sq mi |
| Coordinates: | 43.1229, -98.4927 |
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9,184 residents live across 7 ZIPs covering 1,169 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 9,388 to 9,184 from 2014 to 2024 — a -2.2% change. 4 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 57367 (Pickstown, $87,188 median) and poorest ZIP 57361 (Marty, $19,830) are 13.4 miles apart — a 4.4× income gap across local geography.
Median home values vary 2.5× across this county — from $113,900 in 57356 (Lake Andes) to $287,500 in 57367 (Pickstown).
Density varies 30× across the county — from 2 people/sq mi in 57342 (Geddes) to 67 in 57367 (Pickstown).
Educational attainment ranges from 12.1% bachelor's+ in 57329 (Dante) to 41.1% in 57367 (Pickstown) — the breadth of educational profiles across the area.
Within South Dakota, this is the #18 most populous of 82 counties and ranks #66 for median household income .
Weighted by population, the typical household earns about $65,071 across the county — reflecting what a typical resident sees, not a simple ZIP average.
24.6% of adults age 25+ hold a bachelor's degree or higher (1,387 of 5,646 reporting).
5 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 4.4× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 57380 | Wagner | Standard | 3,316 | $62,135 | 287.5 | -10.4% |
| 57369 | Platte | Standard | 2,630 | $78,100 | 461.1 | -0.9% |
| 57356 | Lake Andes | Standard | 1,959 | $54,107 | 185.4 | 2.8% |
| 57342 | Geddes | Standard | 393 | $75,313 | 176.0 | -11.1% |
| 57329 | Dante | Standard | 317 | $62,115 | 54.7 | 6.0% |
| 57367 | Pickstown | PO Box | 291 | $87,188 | 4.3 | 55.6% |
| 57361 | Marty | PO Box | 278 | $19,830 | 0.0 | 36.9% |