7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 50436 | Forest City | 5,879 |
| 50450 | Lake Mills | 2,839 |
| 50424 | Buffalo Center | 1,532 |
| 50478 | Thompson | 788 |
| 50453 | Leland | 535 |
| 50465 | Rake | 187 |
| 50473 | Scarville | 171 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Winnebago County, Iowa (US Census).