| Place | Post Code |
|---|---|
| Casablanca, Sihuas | 02220 |
| Cruzjirca, Sihuas | 02220 |
| Fundicion, Sihuas | 02220 |
| Garahuallpa, Sihuas | 02220 |
| Huaylluran, Sihuas | 02220 |
| Maraybamba Arriba, Sihuas | 02220 |
| Mitobamba, Sihuas | 02220 |
| Ñunyash, Sihuas | 02220 |
| Pachachin, Sihuas | 02220 |
| Pariash, Sihuas | 02220 |
| Puca Cruz, Sihuas | 02220 |
| Pueblo Viejo, Sihuas | 02220 |
| Pumahuasi, Sihuas | 02220 |
| Putaga, Sihuas | 02220 |
| Puyuguero, Sihuas | 02220 |
| Querobamba, Sihuas | 02220 |
| Ranrabamba, Sihuas | 02220 |
| San Francisco, Sihuas | 02220 |
| Santa Ana, Sihuas | 02220 |
| Saurapa, Sihuas | 02220 |
| Shactay, Sihuas | 02220 |
| Shactay Arriba, Sihuas | 02220 |
| Sihuas, Sihuas | 02222 |
| Siraumarca, Sihuas | 02220 |
| Tinyayo, Sihuas | 02220 |
| Usamasanga, Sihuas | 02220 |