20902 is the Postal Code/ZIP Code for the District of El Mastate in the Costa Rica Province of Alajuela and the Canton of Orotina. The neighborhoods of Guayabal, La Cañera, Piedra Azul and Punta Caliente are located in Postal Code 20902.
| Postal Code | 20902 |
| Postal Code Name | El Mastate |
| Province | Alajuela Province |
| Canton | Orotina Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 20401 20901 20904 20905 |