12 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 50613 | Cedar Falls | 43,867 |
| 50701 | Waterloo | 30,232 |
| 50702 | Waterloo | 20,882 |
| 50703 | Waterloo | 17,952 |
| 50707 | Evansdale | 7,784 |
| 50648 | Jesup | 4,269 |
| 50651 | La Porte City | 3,147 |
| 50643 | Hudson | 3,027 |
| 50626 | Dunkerton | 1,468 |
| 50667 | Raymond | 899 |
| 50634 | Gilbertville | 761 |
| 50623 | Dewar | 153 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 12 ZCTAs in Black Hawk County, Iowa (US Census).