Johnston, IA Area Codes
Johnston is served by area code 515. It is in Iowa, Polk County. About 24,583 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 515 |
| State / province | Iowa |
| County | Polk County |
| Population | 24,583 |
| ZIP codes | 1 |
| Time zone | Central |
| Coordinates | 41.6968, -93.7208 |
What area code is Johnston in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 515 | Iowa | 904,103 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
How to dial
Dial 515 + 7 digits for a number in Johnston, or +1 515 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.