Chicago, IL Area Codes
Chicago is served by area codes 312, 773 and 872. It is in Illinois, Cook County. About 2,694,535 people live in its 84 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 312, 773, 872 |
| State / province | Illinois |
| County | Cook County |
| Population | 2,694,535 |
| ZIP codes | 84 |
| Time zone | Central |
| Coordinates | 41.8540, -87.6750 |
What area code is Chicago in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 312 | Illinois | 2,795,182 | — |
| 773 | Illinois | 2,694,535 | Yes |
| 872 | Illinois | 2,694,535 | Yes |
ZIP codes in the code footprint
60601, 60602, 60603, 60604, 60605, 60606, 60607, 60608, 60609, 60610, 60611, 60612, 60613, 60614, 60615, 60616, 60617, 60618, 60619, 60620, 60621, 60622, 60623, 60624, 60625, 60626, 60628, 60629, 60630, 60631, 60632, 60633, 60634, 60636, 60637, 60638, 60639, 60640, 60641, 60642 … and 44 more
Nearby towns and their area codes
Cicero 464, 708Berwyn 464, 708Oak Park 708Oak Lawn 464, 708Forest Park 464, 708Riverside 708River Forest 464, 708Lyons 464, 708
How to dial
Dial 312 + 7 digits for a number in Chicago, or +1 312 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.