| Zip Code | Primary City | Secondary City | More Information |
| 52411 | Cedar Rapids | Robins | Robins population stats |
| 52328 | Robins | Robins | Robins population stats |
| 52401 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52402 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52403 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52404 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52405 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52406 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52407 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52408 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52409 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52410 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52497 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52498 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |
| 52499 | Cedar Rapids | Cedar Rapids | Cedar Rapids population stats |