| Place | Post Code |
|---|---|
| Santa Cruz de Chuna, Santiago de Chuco | 13145 |
| Santa Rosa, Santiago de Chuco | 13145 |
| Santiago de Chuco, Santiago de Chuco | 13146 |
| Shiracball, Santiago de Chuco | 13145 |
| Sincas, Santiago de Chuco | 13145 |
| Sincon, Santiago de Chuco | 13145 |
| Sogobara, Santiago de Chuco | 13145 |
| Suruvara, Santiago de Chuco | 13145 |
| Suyarida, Santiago de Chuco | 13145 |
| Uningambalito, Santiago de Chuco | 13145 |
| Urpimarca, Santiago de Chuco | 13145 |
| Urumaca, Santiago de Chuco | 13145 |
| Ururupa Alta, Santiago de Chuco | 13145 |
| Ururupa Baja, Santiago de Chuco | 13145 |