50603 is the Postal Code/ZIP Code for the District of San Miguel in the Costa Rica Province of Guanacaste and the Canton of Cañas. The neighborhoods of Barrio Las Mercedes, Barrio Los García, Barrio Piedra Hermosa, Higuerón Arriba, La Montaña and San Buenaventura are located in Postal Code 50603.
| Postal Code | 50603 |
| Postal Code Name | San Miguel |
| Province | Guanacaste Province |
| Canton | Cañas Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 50601 50604 50605 50701 50805 |