10503 is the Postal Code/ZIP Code for the District of San Carlos in the Costa Rica Province of San José and the Canton of Tarrazú. The neighborhoods of Alto Chiral, Cura, Jamaica, Llano La Virgen and San Cayetano Nuevo are located in Postal Code 10503.
| Postal Code | 10503 |
| Postal Code Name | San Carlos |
| Province | San José Province |
| Canton | Tarrazú Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10502 10605 12003 12004 60601 60901 |