40303 is the Postal Code/ZIP Code for the District of San Miguel in the Costa Rica Province of Heredia and the Canton of Santo Domingo. The neighborhoods of Castilla, Cuesta Rojas, Montero, Socorro and Villa Rossi are located in Postal Code 40303.
| Postal Code | 40303 |
| Postal Code Name | San Miguel |
| Province | Heredia Province |
| Canton | Santo Domingo Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 11301 11401 11403 40304 40305 40307 40308 |