50203 is the Postal Code/ZIP Code for the District of San Antonio in the Costa Rica Province of Guanacaste and the Canton of Nicoya. The neighborhoods of El Tamarindo, Guayabal, La Bolsa, Matamba, Montañita, Piave and Pueblo Nuevo are located in Postal Code 50203.
| Postal Code | 50203 |
| Postal Code Name | San Antonio |
| Province | Guanacaste Province |
| Canton | Nicoya Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 50201 50202 50204 50302 50307 50401 50605 |