Sidney, MT Area Codes
Sidney is served by area code 406. It is in Montana, Richland County. About 8,571 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 406 |
| State / province | Montana |
| County | Richland County |
| Population | 8,571 |
| ZIP codes | 1 |
| Time zone | Mountain |
| Coordinates | 47.6094, -104.0861 |
What area code is Sidney in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 406 | Montana | 1,116,057 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
How to dial
Dial 406 + 7 digits for a number in Sidney, or +1 406 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.