20505 is the Postal Code/ZIP Code for the District of Concepción in the Costa Rica Province of Alajuela and the Canton of Atenas. The neighborhoods of Andrómeda 3, Coyoles, La Estación, La Granja, Obraje, San Martín and Tornos are located in Postal Code 20505.
| Postal Code | 20505 |
| Postal Code Name | Concepción |
| Province | Alajuela Province |
| Canton | Atenas Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10705 20111 20113 20501 20502 20508 |