15 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 52732 | Clinton | 26,004 |
| 52742 | De Witt | 7,410 |
| 52730 | Camanche | 4,993 |
| 52777 | Wheatland | 1,335 |
| 52751 | Grand Mound | 1,027 |
| 52037 | Delmar | 1,014 |
| 52254 | Lost Nation | 1,000 |
| 52729 | Calamus | 834 |
| 52731 | Charlotte | 808 |
| 52750 | Goose Lake | 569 |
| 52727 | Bryant | 383 |
| 52757 | Low Moor | 242 |
| 52774 | Welton | 123 |
| 52701 | Andover | 120 |
| 52771 | Teeds Grove | 69 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 15 ZCTAs in Clinton County, Iowa (US Census).