Geneseo, IL Area Codes
Geneseo is served by area code 309. It is in Illinois, Henry County. About 12,135 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 309 |
| State / province | Illinois |
| County | Henry County |
| Population | 12,135 |
| ZIP codes | 1 |
| Time zone | Central |
| Coordinates | 41.4672, -90.1496 |
What area code is Geneseo in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 309 | Illinois | 887,272 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
East Moline 309Kewanee 309Moline 309, 861Rock Island 309, 861Milan 309, 861Rock Falls 815Sterling 779, 815Princeton 779, 815
How to dial
Dial 309 + 7 digits for a number in Geneseo, or +1 309 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.