City · Montana · United States
Fort Smith, MT — ZIP codes
1 ZIP code · Big Horn County
- City
- Fort Smith
- County
- Big Horn
- State
- Montana
- Country
- United States
- Postal code
- 59035Single source
- Coordinates
- 45.3127, -107.9371 View on OpenStreetMap
- Area code
- 406
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 59035 | Fort Smith | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.