15 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 52052 | Guttenberg | 2,807 |
| 52076 | Strawberry Point | 2,231 |
| 52042 | Edgewood | 1,898 |
| 52043 | Elkader | 1,853 |
| 52157 | McGregor | 1,379 |
| 52035 | Colesburg | 1,345 |
| 52049 | Garnavillo | 1,336 |
| 52156 | Luana | 795 |
| 52047 | Farmersburg | 697 |
| 52072 | Saint Olaf | 694 |
| 52158 | Marquette | 286 |
| 52044 | Elkport | 282 |
| 52077 | Volga | 266 |
| 52048 | Garber | 243 |
| 52066 | North Buena Vista | 97 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 15 ZCTAs in Clayton County, Iowa (US Census).