| Zip Code | City | Population ↓ |
|---|---|---|
| 53402 | Racine | 35,296 |
| 53105 | Burlington | 29,217 |
| 53405 | Racine | 27,199 |
| 53403 | Racine | 26,879 |
| 53406 | Racine | 25,994 |
| 53185 | Waterford | 18,578 |
| 53404 | Racine | 13,089 |
| 53182 | Union Grove | 9,498 |
| 53177 | Sturtevant | 8,434 |
| 53126 | Franksville | 7,012 |
| 53108 | Caledonia | 2,867 |
| 53139 | Kansasville | 2,163 |
| 53167 | Rochester | 319 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Racine County, Wisconsin (US Census).