Janesville, WI Area Codes
Janesville is served by area code 608. It is in Wisconsin, Rock County. About 74,486 people live in its 4 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 608 |
| State / province | Wisconsin |
| County | Rock County |
| Population | 74,486 |
| ZIP codes | 4 |
| Time zone | Central |
| Coordinates | 42.7024, -89.0374 |
What area code is Janesville in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 608 | Wisconsin | 1,286,792 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
Milton 608Edgerton 608Beloit 608Evansville 608Fort Atkinson 920Whitewater 262Stoughton 608Delavan 262
How to dial
Dial 608 + 7 digits for a number in Janesville, or +1 608 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.