20 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 84790 | Saint George | 54,353 |
| 84770 | Saint George | 47,226 |
| 84780 | Washington | 30,709 |
| 84737 | Hurricane | 23,477 |
| 84738 | Ivins | 9,607 |
| 84765 | Santa Clara | 7,891 |
| 84745 | La Verkin | 4,429 |
| 84774 | Toquerville | 2,115 |
| 84725 | Enterprise | 1,665 |
| 84757 | New Harmony | 1,388 |
| 84784 | Hildale | 1,301 |
| 84746 | Leeds | 1,251 |
| 84783 | Dammeron Valley | 1,019 |
| 84722 | Central | 773 |
| 84779 | Virgin | 734 |
| 84767 | Springdale | 620 |
| 84782 | Veyo | 562 |
| 84781 | Pine Valley | 372 |
| 84733 | Gunlock | 252 |
| 84763 | Rockville | 169 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 20 ZCTAs in Washington County, Utah (US Census).