10312 is the Postal Code/ZIP Code for the District of Gravilias in the Costa Rica Province of San José and the Canton of Desamparados. The neighborhoods of Damasco, El Porvenir, La Cartonera, La Fortuna, La Fortunita, La Raya, Las Esmeraldas, Lomas de Salitral, Los Claveles, Los Diamantes, Riberalta and Villanueva are located in Postal Code 10312.
| Postal Code | 10312 |
| Postal Code Name | Gravilias |
| Province | San José Province |
| Canton | Desamparados Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10301 10302 10305 10310 10313 |