| ZIP Codes: | 3 ZIP Codes (2 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 320 / 605 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:43 PM |
| Population: | 1,791 [See All] |
| FIPS: | 46073 |
| Land Area: | 566 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 44.1013, -98.5031 |
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1,791 residents live across 3 ZIPs covering 566 sq mi, served by 3 distinct USPS-recognized cities.
Population moved from 2,083 to 1,791 from 2014 to 2024 — a -14.0% change. 1 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 57312 (Alpena, $91,688 median) and poorest ZIP 57382 (Wessington Springs, $79,375) are 17.6 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.2× across this county — from $137,500 in 57312 (Alpena) to $164,900 in 57382 (Wessington Springs).
Density varies 2× across the county — from 3 people/sq mi in 57382 (Wessington Springs) to 5 in 57312 (Alpena).
Educational attainment ranges from 4.7% bachelor's+ in 57312 (Alpena) to 26.4% in 57382 (Wessington Springs) — the breadth of educational profiles across the area.
Within South Dakota, this is the #59 most populous of 82 counties and ranks #17 for median household income .
Weighted by population, the typical household earns about $83,520 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.1% of adults age 25+ hold a bachelor's degree or higher (266 of 1,324 reporting).
2 Standard delivery, 1 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Jerauld County lost 14.0% of residents between 2014 and 2024. ZIPs that shed the largest share: