Mount Vernon, IL Area Codes
Mount Vernon is served by area codes 618 and 730. It is in Illinois, Jefferson County. About 22,779 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 618, 730 |
| State / province | Illinois |
| County | Jefferson County |
| Population | 22,779 |
| ZIP codes | 1 |
| Time zone | Central |
| Coordinates | 38.3305, -88.9024 |
What area code is Mount Vernon in?
ZIP codes in the code footprint
Nearby towns and their area codes
Centralia 618, 730Salem 618, 730Benton 618, 730Du Quoin 618West Frankfort 618Herrin 618, 730Carterville 618Marion 618, 730
How to dial
Dial 618 + 7 digits for a number in Mount Vernon, or +1 618 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.