11804 is the Postal Code/ZIP Code for the District of Tirrases in the Costa Rica Province of San José and the Canton of Curridabat. The neighborhoods of 15 de Agosto, Barrio Lomas de San Pancracio, La Colina and La Ponderosa are located in Postal Code 11804.
| Postal Code | 11804 |
| Postal Code Name | Tirrases |
| Province | San José Province |
| Canton | Curridabat Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10106 10305 11801 11803 30303 30308 |