| Zip Code | City | Population ↓ |
|---|---|---|
| 51442 | Denison | 9,692 |
| 51454 | Manilla | 1,254 |
| 51461 | Schleswig | 1,097 |
| 51439 | Charter Oak | 818 |
| 51465 | Vail | 689 |
| 51528 | Dow City | 674 |
| 51448 | Kiron | 612 |
| 51467 | Westside | 596 |
| 51441 | Deloit | 468 |
| 51520 | Arion | 243 |
| 51460 | Ricketts | 61 |
| 51432 | Aspinwall | 45 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 12 ZCTAs in Crawford County, Iowa (US Census).