Saint John, IN Area Codes
Saint John is served by area code 219. It is in Indiana, Lake County. About 18,843 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 219 |
| State / province | Indiana |
| County | Lake County |
| Population | 18,843 |
| ZIP codes | 1 |
| Time zone | Central |
| Coordinates | 41.4418, -87.4678 |
What area code is Saint John in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 219 | Indiana | 841,350 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
Dyer 219Schererville 219Cedar Lake 219Griffith 219Merrillville 219Crown Point 219Highland 219Munster 219
How to dial
Dial 219 + 7 digits for a number in Saint John, or +1 219 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.