Helena zipcode
| City | Helena |
| ZIP Code | 59623 |
| Type | Company/Organization |
| State Code | MT |
| State | Montana |
ZIP code of Helena is 59623. This place is located in Montana state in US. To send any postal service to Helena, you must use 59623 zipcode.
You should avoid following 1 city name of Montana to be used with the ZIP code 59623.
- City County Building, MT