11 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 62230 | Breese | 6,377 |
| 62231 | Carlyle | 6,377 |
| 62265 | New Baden | 4,555 |
| 62293 | Trenton | 4,433 |
| 62216 | Aviston | 3,156 |
| 62218 | Bartelso | 2,018 |
| 62215 | Albers | 1,917 |
| 62245 | Germantown | 1,861 |
| 62219 | Beckemeyer | 993 |
| 62250 | Hoffman | 607 |
| 62266 | New Memphis | 103 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Clinton County, Illinois (US Census).