The most populated Zip Code in Floyd County, Iowa is 50616, located in Charles City. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | City | Population |
|---|---|---|
| 50616 | Charles City | 9,544 |
| 50458 | Nora Springs | 2,297 |
| 50468 | Rockford | 1,553 |
| 50435 | Floyd | 687 |
| 50471 | Rudd | 680 |
| 50653 | Marble Rock | 504 |
| 50620 | Colwell | 55 |