21402 is the Postal Code/ZIP Code for the District of Caño Negro in the Costa Rica Province of Alajuela and the Canton of Los Chiles. The neighborhoods of El Sitio, Finca La Chompipera, Finca Santa Ana, Las Marías, Las Mercedes, Los Pilones, Paraíso and Veracruz are located in Postal Code 21402.
| Postal Code | 21402 |
| Postal Code Name | Caño Negro |
| Province | Alajuela Province |
| Canton | Los Chiles Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 21307 21401 21403 21502 21504 |