| Locality | Post Code |
|---|---|
| Everest, Brown | 66424 |
| Fairview, Brown | 66425 |
| Hamlin, Brown | 66434 |
| Hiawatha, Brown | 66434 |
| Horton, Brown | 66439 |
| Morrill, Brown | 66515 |
| Netawaka, Brown | 66516 |
| Powhattan, Brown | 66527 |
| Reserve, Brown | 66434 |
| Robinson, Brown | 66532 |
| Sabetha, Brown | 66534 |
| White Cloud, Brown | 66094 |
| Willis, Brown | 66434 |