Coal City, IL Area Codes
Coal City is served by area codes 779 and 815. It is in Illinois, Grundy County. About 9,550 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 779, 815 |
| State / province | Illinois |
| County | Grundy County |
| Population | 9,550 |
| ZIP codes | 1 |
| Time zone | Central |
| Coordinates | 41.2939, -88.2831 |
What area code is Coal City in?
ZIP codes in the code footprint
Nearby towns and their area codes
Wilmington 779, 815Morris 779, 815Channahon 779, 815Minooka 779, 815Shorewood 779, 815Manhattan 779, 815Joliet 779, 815Crest Hill 779, 815
How to dial
Dial 779 + 7 digits for a number in Coal City, or +1 779 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.