Rock Island, IL Area Codes
Rock Island is served by area codes 309 and 861. It is in Illinois, Rock Island County. About 36,766 people live in its 3 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 309, 861 |
| State / province | Illinois |
| County | Rock Island County |
| Population | 36,766 |
| ZIP codes | 3 |
| Time zone | Central |
| Coordinates | 41.5176, -90.5777 |
What area code is Rock Island in?
ZIP codes in the code footprint
Nearby towns and their area codes
Moline 309, 861Milan 309, 861East Moline 309Geneseo 309Kewanee 309Galesburg 309Monmouth 309Rock Falls 815
How to dial
Dial 309 + 7 digits for a number in Rock Island, or +1 309 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.