15 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 52732 | Clinton | 25,880 |
| 52742 | De Witt | 7,284 |
| 52730 | Camanche | 4,776 |
| 52777 | Wheatland | 1,389 |
| 52037 | Delmar | 1,172 |
| 52254 | Lost Nation | 1,004 |
| 52751 | Grand Mound | 976 |
| 52729 | Calamus | 886 |
| 52731 | Charlotte | 867 |
| 52750 | Goose Lake | 654 |
| 52727 | Bryant | 398 |
| 52757 | Low Moor | 242 |
| 52701 | Andover | 124 |
| 52774 | Welton | 101 |
| 52771 | Teeds Grove | 56 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 15 ZCTAs in Clinton County, Iowa (US Census).