There are a total of 13 Postal Codes in Huánuco Region Peru
| Postal Code | Place Name | Region | Province | |||
|---|---|---|---|---|---|---|
| Santa Ana | Huánuco | Castrovirreyna | |||
| Arma | Huánuco | Castrovirreyna | |||
| Huachos | Huánuco | Castrovirreyna | |||
| Capillas | Huánuco | Castrovirreyna | |||
| Mollepampa | Huánuco | Castrovirreyna | |||
| Cocas | Huánuco | Castrovirreyna | |||
| Castrovirreyna | Huánuco | Castrovirreyna | |||
| Ticrapo | Huánuco | Castrovirreyna | |||
| Aurahua | Huánuco | Castrovirreyna | |||
| Tantara | Huánuco | Castrovirreyna | |||
| Huamatambo | Huánuco | Castrovirreyna | |||
| San Juan | Huánuco | Castrovirreyna | |||