Montana ZIP codes
Main ZIP codes for the largest cities in Montana. Format: 5-digit ZIP code (ZIP+4 optional).
Cities
| City | Code |
|---|---|
| Billings | 59101 |
| Missoula | 59801 |
| Helena | 59601 |
| Bozeman | 59715 |
| Great Falls | 59401 |
Large cities have many codes; the code shown is the main/central one. All states & countries →