20108 is the Postal Code/ZIP Code for the District of San Rafael in the Costa Rica Province of Alajuela and the Canton of Alajuela. The neighborhoods of Corazón de Jesús, La Cañada, Lourdes, Nazareth, Ojo de Agua, Paires, Potrerillos and Villa Rosario are located in Postal Code 20108.
| Postal Code | 20108 |
| Postal Code Name | San Rafael |
| Province | Alajuela Province |
| Canton | Alajuela Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10203 10701 10903 10906 20105 20109 40701 40702 |