Naperville, IL Area Codes
Naperville is served by area codes 331 and 630. It is in Illinois, DuPage County. About 169,081 people live in its 6 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 331, 630 |
| State / province | Illinois |
| County | DuPage County |
| Population | 169,081 |
| ZIP codes | 6 |
| Time zone | Central |
| Coordinates | 41.7692, -88.1511 |
What area code is Naperville in?
ZIP codes in the code footprint
60540, 60563, 60564, 60565, 60566, 60567
Nearby towns and their area codes
Lisle 331, 630Warrenville 331, 630Woodridge 331, 630Aurora 331, 630Wheaton 331, 630Downers Grove 331, 630Winfield 331, 630Carol Stream 331, 630
How to dial
Dial 331 + 7 digits for a number in Naperville, or +1 331 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.