| Place | Post Code |
|---|---|
| Fort Tenan, Muhoroni/Koru | 40100 |
| Homalime, Muhoroni/Koru | 40100 |
| Koru, Muhoroni/Koru | 40104 |
| Muhoroni East, Muhoroni/Koru | 40107 |
| Nyando, Muhoroni/Koru | 40100 |
| Ochoria, Muhoroni/Koru | 40100 |
| Orego, Muhoroni/Koru | 40100 |
| Owaga, Muhoroni/Koru | 40100 |
| Tonde, Muhoroni/Koru | 40100 |
| All postal codes in Muhoroni | |
|---|---|
| Chemelil, Muhoroni | |
| Masogo/Nyang'Oma, Muhoroni | |
| Miwani, Muhoroni | |
| Muhoroni/Koru, Muhoroni | |
| Ombeyi, Muhoroni | |