| Place | Post Code |
|---|---|
| Central Miwani, Miwani | 40100 |
| Kibigori, Miwani | 40119 |
| Miwani East, Miwani | 40106 |
| Miwani North, Miwani | 40106 |
| Miwani West, Miwani | 40106 |
| All postal codes in Muhoroni | |
|---|---|
| Chemelil, Muhoroni | |
| Masogo/Nyang'Oma, Muhoroni | |
| Miwani, Muhoroni | |
| Muhoroni/Koru, Muhoroni | |
| Ombeyi, Muhoroni | |