15 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 52052 | Guttenberg | 2,999 |
| 52076 | Strawberry Point | 2,258 |
| 52043 | Elkader | 2,058 |
| 52042 | Edgewood | 1,804 |
| 52157 | McGregor | 1,451 |
| 52049 | Garnavillo | 1,370 |
| 52035 | Colesburg | 1,331 |
| 52156 | Luana | 769 |
| 52047 | Farmersburg | 462 |
| 52072 | Saint Olaf | 454 |
| 52077 | Volga | 313 |
| 52044 | Elkport | 297 |
| 52158 | Marquette | 290 |
| 52048 | Garber | 201 |
| 52066 | North Buena Vista | 124 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 15 ZCTAs in Clayton County, Iowa (US Census).