ZIP Codes Near 57231 — De Smet, SD
There are 14 ZIP codes within 25 miles of 57231, covering 14 cities and towns. Distances are straight-line between ZIP centroids, not driving distance.
Cities within 25 miles
| City | Distance | ZIP codes |
|---|---|---|
| Lake Preston, SD | 10.8 mi | 1 |
| Iroquois, SD | 12.4 mi | 1 |
| Erwin, SD | 13.0 mi | 1 |
| Oldham, SD | 15.8 mi | 1 |
| Carthage, SD | 16.2 mi | 1 |
| Bryant, SD | 17.3 mi | 1 |
| Willow Lake, SD | 19.4 mi | 1 |
| Badger, SD | 20.4 mi | 1 |
| Arlington, SD | 21.7 mi | 1 |
| Yale, SD | 22.5 mi | 1 |
| Cavour, SD | 23.4 mi | 1 |
| Ramona, SD | 23.8 mi | 1 |
| Lake Norden, SD | 23.9 mi | 1 |
| Howard, SD | 24.1 mi | 1 |
All 14 ZIP codes, by distance
| ZIP | City | County | Distance |
|---|---|---|---|
| 57249 | Lake Preston, SD | Kingsbury | 10.8 mi |
| 57353 | Iroquois, SD | Kingsbury | 12.4 mi |
| 57233 | Erwin, SD | Kingsbury | 13.0 mi |
| 57051 | Oldham, SD | Kingsbury | 15.8 mi |
| 57323 | Carthage, SD | Miner | 16.2 mi |
| 57221 | Bryant, SD | Hamlin | 17.3 mi |
| 57278 | Willow Lake, SD | Clark | 19.4 mi |
| 57214 | Badger, SD | Kingsbury | 20.4 mi |
| 57212 | Arlington, SD | Kingsbury | 21.7 mi |
| 57386 | Yale, SD | Beadle | 22.5 mi |
| 57324 | Cavour, SD | Beadle | 23.4 mi |
| 57054 | Ramona, SD | Lake | 23.8 mi |
| 57248 | Lake Norden, SD | Hamlin | 23.9 mi |
| 57349 | Howard, SD | Miner | 24.1 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 57231 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 57231
County, time zone, area codes, and the full ZIP+4 lookup for any address in De Smet.