30308 is the Postal Code/ZIP Code for the District of Río Azul in the Costa Rica Province of Cartago and the Canton of La Unión. The neighborhoods of Buenos Aires, El IMAS, Linda Vista, Loma Gobierno and Quebradas are located in Postal Code 30308.
| Postal Code | 30308 |
| Postal Code Name | Río Azul |
| Province | Cartago Province |
| Canton | La Unión Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10305 10307 10310 11803 11804 30111 30302 30303 |