ZIP Codes Near 59638 — Jefferson City, MT
There are 10 ZIP codes within 25 miles of 59638, covering 8 cities and towns. Distances are straight-line between ZIP centroids, not driving distance.
Cities within 25 miles
| City | Distance | ZIP codes |
|---|---|---|
| Clancy, MT | 5.5 mi | 1 |
| Boulder, MT | 13.4 mi | 1 |
| Helena, MT | 14.5 mi | 3 |
| East Helena, MT | 16.9 mi | 1 |
| Basin, MT | 17.7 mi | 1 |
| Fort Harrison, MT | 18.3 mi | 1 |
| Winston, MT | 19.5 mi | 1 |
| Elliston, MT | 20.9 mi | 1 |
All 10 ZIP codes, by distance
| ZIP | City | County | Distance |
|---|---|---|---|
| 59634 | Clancy, MT | Jefferson | 5.5 mi |
| 59632 | Boulder, MT | Jefferson | 13.4 mi |
| 59601 | Helena, MT | Lewis and Clark | 14.5 mi |
| 59623 | Helena, MT | Lewis and Clark | 16.0 mi |
| 59625 | Helena, MT | Lewis and Clark | 16.8 mi |
| 59635 | East Helena, MT | Lewis and Clark | 16.9 mi |
| 59631 | Basin, MT | Jefferson | 17.7 mi |
| 59636 | Fort Harrison, MT | Lewis and Clark | 18.3 mi |
| 59647 | Winston, MT | Broadwater | 19.5 mi |
| 59728 | Elliston, MT | Powell | 20.9 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 59638 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 59638
County, time zone, area codes, and the full ZIP+4 lookup for any address in Jefferson City.