51103 is the Postal Code/ZIP Code for the District of Puerto Carrillo in the Costa Rica Province of Guanacaste and the Canton of Hojancha. The neighborhoods of Boca Dormilona, El Bajo, El Invu, Mala Noche, Nidos de Celajes, Pueblo Nuevo, Santa María and Santa María Abajo are located in Postal Code 51103.
| Postal Code | 51103 |
| Postal Code Name | Puerto Carrillo |
| Province | Guanacaste Province |
| Canton | Hojancha Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 50205 50207 50903 51101 51102 |