20501 is the Postal Code/ZIP Code for the District of Atenas in the Costa Rica Province of Alajuela and the Canton of Atenas. The neighborhoods of Atenea, Boquerón, El Güízaro, El INVU, El Oasis, Escorpio, La Presa, Los Ángeles, San Rafael and Santa Cecilia are located in Postal Code 20501.
| Postal Code | 20501 |
| Postal Code Name | Atenas |
| Province | Alajuela Province |
| Canton | Atenas Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 20113 20305 20307 20502 20503 20505 20507 20508 |