Great Falls, MT Area Codes
Great Falls is served by area code 406. It is in Montana, Cascade County. About 75,427 people live in its 5 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 406 |
| State / province | Montana |
| County | Cascade County |
| Population | 75,427 |
| ZIP codes | 5 |
| Time zone | Mountain |
| Coordinates | 47.5104, -111.2893 |
What area code is Great Falls in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 406 | Montana | 1,116,057 | — |
ZIP codes in the code footprint
59401, 59403, 59404, 59405, 59406
Nearby towns and their area codes
How to dial
Dial 406 + 7 digits for a number in Great Falls, or +1 406 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.