21404 is the Postal Code/ZIP Code for the District of San Jorge in the Costa Rica Province of Alajuela and the Canton of Los Chiles.
| Postal Code | 21404 |
| Postal Code Name | San Jorge |
| Province | Alajuela Province |
| Canton | Los Chiles Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 21012 21013 21403 21501 21502 |