ZIP Codes Near 57445 — Groton, SD
There are 15 ZIP codes within 25 miles of 57445, covering 15 cities and towns. Distances are straight-line between ZIP centroids, not driving distance.
Cities within 25 miles
| City | Distance | ZIP codes |
|---|---|---|
| Ferney, SD | 8.6 mi | 1 |
| Bath, SD | 9.7 mi | 1 |
| Andover, SD | 10.0 mi | 1 |
| Stratford, SD | 14.1 mi | 1 |
| Columbia, SD | 16.0 mi | 1 |
| Claremont, SD | 16.3 mi | 1 |
| Pierpont, SD | 18.0 mi | 1 |
| Warner, SD | 18.7 mi | 1 |
| Houghton, SD | 19.0 mi | 1 |
| Bristol, SD | 19.5 mi | 1 |
| Langford, SD | 19.9 mi | 1 |
| Aberdeen, SD | 19.9 mi | 1 |
| Conde, SD | 20.3 mi | 1 |
| Brentford, SD | 22.3 mi | 1 |
| Amherst, SD | 22.7 mi | 1 |
All 15 ZIP codes, by distance
| ZIP | City | County | Distance |
|---|---|---|---|
| 57439 | Ferney, SD | Brown | 8.6 mi |
| 57427 | Bath, SD | Brown | 9.7 mi |
| 57422 | Andover, SD | Day | 10.0 mi |
| 57474 | Stratford, SD | Brown | 14.1 mi |
| 57433 | Columbia, SD | Brown | 16.0 mi |
| 57432 | Claremont, SD | Brown | 16.3 mi |
| 57468 | Pierpont, SD | Day | 18.0 mi |
| 57479 | Warner, SD | Brown | 18.7 mi |
| 57449 | Houghton, SD | Brown | 19.0 mi |
| 57219 | Bristol, SD | Day | 19.5 mi |
| 57454 | Langford, SD | Marshall | 19.9 mi |
| 57401 | Aberdeen, SD | Brown | 19.9 mi |
| 57434 | Conde, SD | Spink | 20.3 mi |
| 57429 | Brentford, SD | Spink | 22.3 mi |
| 57421 | Amherst, SD | Marshall | 22.7 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 57445 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 57445
County, time zone, area codes, and the full ZIP+4 lookup for any address in Groton.