ZIP Codes Near 57787 — Union Center, SD
There are 3 ZIP codes within 25 miles of 57787, covering 3 cities and towns. Distances are straight-line between ZIP centroids, not driving distance.
Cities within 25 miles
| City | Distance | ZIP codes |
|---|---|---|
| Enning, SD | 10.2 mi | 1 |
| White Owl, SD | 15.4 mi | 1 |
| Mud Butte, SD | 22.8 mi | 1 |
All 3 ZIP codes, by distance
| ZIP | City | County | Distance |
|---|---|---|---|
| 57737 | Enning, SD | Meade | 10.2 mi |
| 57792 | White Owl, SD | Meade | 15.4 mi |
| 57758 | Mud Butte, SD | Meade | 22.8 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 57787 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 57787
County, time zone, area codes, and the full ZIP+4 lookup for any address in Union Center.