70103 is the Postal Code/ZIP Code for the District of Río Blanco in the Costa Rica Province of Limón and the Canton of Limón. The neighborhoods of Caribe, Limón 2000, Loma Linda, Maderas, México, Nueve Millas, Plantel Búfalo, Río Madre, San Antonio, Sandoval and Victoria are located in Postal Code 70103.
| Postal Code | 70103 |
| Postal Code Name | Río Blanco |
| Province | Limón Province |
| Canton | Limón Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 70101 70104 70503 |