15 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 52052 | Guttenberg | 2,890 |
| 52076 | Strawberry Point | 2,150 |
| 52043 | Elkader | 1,860 |
| 52042 | Edgewood | 1,663 |
| 52157 | McGregor | 1,457 |
| 52035 | Colesburg | 1,255 |
| 52049 | Garnavillo | 1,132 |
| 52047 | Farmersburg | 801 |
| 52072 | Saint Olaf | 792 |
| 52156 | Luana | 681 |
| 52048 | Garber | 307 |
| 52158 | Marquette | 298 |
| 52044 | Elkport | 297 |
| 52077 | Volga | 287 |
| 52066 | North Buena Vista | 92 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 15 ZCTAs in Clayton County, Iowa (US Census).