All Zip Codes in United States
| Zip Codes | Population | State | Rank |
|---|
| 51503 zip code | 36,376 | Iowa | 1 |
| 51501 zip code | 35,406 | Iowa | 2 |
| 51106 zip code | 26,544 | Iowa | 3 |
| 51104 zip code | 22,104 | Iowa | 4 |
| 51103 zip code | 17,453 | Iowa | 5 |
| 51301 zip code | 12,691 | Iowa | 6 |
| 51401 zip code | 12,373 | Iowa | 7 |
| 51031 zip code | 12,336 | Iowa | 8 |
| 51105 zip code | 10,216 | Iowa | 9 |
| 51442 zip code | 9,838 | Iowa | 10 |
| 51534 zip code | 9,236 | Iowa | 11 |
| 51250 zip code | 8,249 | Iowa | 12 |
| 51360 zip code | 8,031 | Iowa | 13 |
| 51334 zip code | 7,661 | Iowa | 14 |
| 51632 zip code | 7,297 | Iowa | 15 |
| 51566 zip code | 7,035 | Iowa | 16 |
| 51041 zip code | 6,976 | Iowa | 17 |
| 51537 zip code | 6,703 | Iowa | 18 |
| 51012 zip code | 6,642 | Iowa | 19 |
| 51201 zip code | 6,193 | Iowa | 20 |
| 51601 zip code | 6,025 | Iowa | 21 |
| 51108 zip code | 5,566 | Iowa | 22 |
| 51555 zip code | 5,245 | Iowa | 23 |
| 51054 zip code | 5,110 | Iowa | 24 |