100 Smallest ZIP Codes in the United States by Population in Rock County, Wisconsin
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Rock County, Wisconsin.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 53501 | AFTON | WI | 249 |
| 2 | 53505 | AVALON | WI | 368 |
| 3 | 53537 | FOOTVILLE | WI | 871 |
| 4 | 53576 | ORFORDVILLE | WI | 2,359 |
| 5 | 53525 | CLINTON | WI | 4,024 |
| 6 | 53536 | EVANSVILLE | WI | 9,073 |
| 7 | 53563 | MILTON | WI | 11,587 |
| 8 | 53534 | EDGERTON | WI | 12,306 |
| 9 | 53548 | JANESVILLE | WI | 20,119 |
| 10 | 53545 | JANESVILLE | WI | 24,037 |
| 11 | 53546 | JANESVILLE | WI | 29,352 |
| 12 | 53511 | BELOIT | WI | 48,749 |