Jefferson, WI Area Codes
Jefferson is served by area code 920. It is in Wisconsin, Jefferson County. About 9,873 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 920 |
| State / province | Wisconsin |
| County | Jefferson County |
| Population | 9,873 |
| ZIP codes | 1 |
| Time zone | Central |
| Coordinates | 42.9845, -88.7656 |
What area code is Jefferson in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 920 | Wisconsin | 1,314,315 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
Fort Atkinson 920Lake Mills 274, 920Whitewater 262Watertown 920Milton 608Oconomowoc 262Edgerton 608East Troy 262
How to dial
Dial 920 + 7 digits for a number in Jefferson, or +1 920 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.