| Place | Post Code |
|---|---|
| Cochacancha, Naván | 15260 |
| Conchao (San Jeronimo de Conchao), Naván | 15260 |
| Danjato, Naván | 15260 |
| Halan, Naván | 15260 |
| Hualalin, Naván | 15260 |
| Huampar, Naván | 15260 |
| Liple (Virgen del Carmen de Liple), Naván | 15260 |
| Navan, Naván | 15260 |
| Pachacayo, Naván | 15260 |
| Puna, Naván | 15260 |
| Quichaura, Naván | 15260 |
| Quiquiora, Naván | 15260 |
| Rata Huaca, Naván | 15260 |
| Sahuanta, Naván | 15260 |
| San Miguel, Naván | 15260 |
| San Miguel de Huasa, Naván | 15260 |
| Vicos, Naván | 15260 |
| All postal codes in Oyón | |
|---|---|
| Andajes, Oyón | |
| Caujul, Oyón | |
| Cochamarca, Oyón | |
| Naván, Oyón | |
| Oyón, Oyón | |
| Pachangará, Oyón | |