ZIP Codes Near 57646 — Mound City, SD
There are 8 ZIP codes within 25 miles of 57646, covering 8 cities and towns. Distances are straight-line between ZIP centroids, not driving distance.
Cities within 25 miles
| City | Distance | ZIP codes |
|---|---|---|
| Herreid, SD | 9.8 mi | 1 |
| Glenham, SD | 13.4 mi | 1 |
| Java, SD | 14.0 mi | 1 |
| Selby, SD | 18.1 mi | 1 |
| Pollock, SD | 20.9 mi | 1 |
| Eureka, SD | 22.0 mi | 1 |
| Wakpala, SD | 24.4 mi | 1 |
| Bowdle, SD | 24.5 mi | 1 |
All 8 ZIP codes, by distance
| ZIP | City | County | Distance |
|---|---|---|---|
| 57632 | Herreid, SD | Campbell | 9.8 mi |
| 57631 | Glenham, SD | Walworth | 13.4 mi |
| 57452 | Java, SD | Walworth | 14.0 mi |
| 57472 | Selby, SD | Walworth | 18.1 mi |
| 57648 | Pollock, SD | Campbell | 20.9 mi |
| 57437 | Eureka, SD | McPherson | 22.0 mi |
| 57658 | Wakpala, SD | Corson | 24.4 mi |
| 57428 | Bowdle, SD | Edmunds | 24.5 mi |
How this list is calculated
Each ZIP code is represented by a single centroid point, and distance is measured great-circle from the centroid of 57646 to each of the others. Two consequences worth knowing about:
- Large rural ZIPs distort the picture. A ZIP covering 400 square miles has a centroid that may be 15 miles from its own nearest edge, so a code listed as 30 miles away can begin much closer.
- These are not driving distances. A river, a bay, or a mountain range makes a 12-mile straight line into a 40-minute drive. For service-area planning, use this as a first cut and check the routes.
If you need this programmatically — for a store locator, a delivery zone, or a territory map — the radius endpoint returns the same data as JSON, with an arbitrary radius and optional state filtering.
Back to 57646
County, time zone, area codes, and the full ZIP+4 lookup for any address in Mound City.