County: Rock
| Zip code | County Code |
MSA Code |
City | State |
|---|---|---|---|---|
| 53501 | 55105 | Janesville-Beloit, WI | Afton | Wisconsin |
| 53505 | 55105 | Janesville-Beloit, WI | Avalon | Wisconsin |
| 53511 | 55105 | Janesville-Beloit, WI | Beloit | Wisconsin |
| 53512 | 55105 | Janesville-Beloit, WI | Beloit | Wisconsin |
| 53525 | 55105 | Janesville-Beloit, WI | Clinton | Wisconsin |
| 53534 | 55105 | Janesville-Beloit, WI | Edgerton | Wisconsin |
| 53536 | 55105 | Janesville-Beloit, WI | Evansville | Wisconsin |
| 53537 | 55105 | Janesville-Beloit, WI | Footville | Wisconsin |
| 53542 | 55105 | Janesville-Beloit, WI | Hanover | Wisconsin |
| 53545 | 55105 | Janesville-Beloit, WI | Janesville | Wisconsin |
| 53546 | 55105 | Janesville-Beloit, WI | Janesville | Wisconsin |
| 53547 | 55105 | Janesville-Beloit, WI | Janesville | Wisconsin |
| 53548 | 55105 | Janesville-Beloit, WI | Janesville | Wisconsin |
| 53563 | 55105 | Janesville-Beloit, WI | Milton | Wisconsin |
| 53576 | 55105 | Janesville-Beloit, WI | Orfordville | Wisconsin |