12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 50613 | Cedar Falls | 43,732 |
| 50701 | Waterloo | 30,128 |
| 50702 | Waterloo | 20,818 |
| 50703 | Waterloo | 18,587 |
| 50707 | Evansdale | 7,307 |
| 50648 | Jesup | 4,044 |
| 50651 | La Porte City | 3,608 |
| 50643 | Hudson | 3,063 |
| 50626 | Dunkerton | 1,560 |
| 50667 | Raymond | 810 |
| 50634 | Gilbertville | 770 |
| 50623 | Dewar | 150 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Black Hawk County, Iowa (US Census).