16 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 51503 | Council Bluffs | 37,411 |
| 51501 | Council Bluffs | 34,928 |
| 51510 | Carter Lake | 3,773 |
| 51521 | Avoca | 1,935 |
| 51560 | Oakland | 1,902 |
| 51559 | Neola | 1,896 |
| 51576 | Underwood | 1,890 |
| 51575 | Treynor | 1,707 |
| 51526 | Crescent | 1,694 |
| 51577 | Walnut | 1,637 |
| 51553 | Minden | 1,007 |
| 51525 | Carson | 977 |
| 51542 | Honey Creek | 824 |
| 51536 | Hancock | 504 |
| 51548 | McClelland | 494 |
| 51549 | Macedonia | 292 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 16 ZCTAs in Pottawattamie County, Iowa (US Census).