8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 50536 | Emmetsburg | 4,287 |
| 50597 | West Bend | 1,363 |
| 51342 | Graettinger | 1,349 |
| 51358 | Ruthven | 1,277 |
| 50528 | Cylinder | 365 |
| 50562 | Mallard | 346 |
| 50515 | Ayrshire | 248 |
| 50527 | Curlew | 85 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Palo Alto County, Iowa (US Census).