11912 is the Postal Code/ZIP Code for the District of La Amistad in the Costa Rica Province of San José and the Canton of Pérez Zeledón.
| Postal Code | 11912 |
| Postal Code Name | La Amistad |
| Province | San José Province |
| Canton | Pérez Zeledón Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 11905 11906 11907 11908 60302 60305 |