30302 is the Postal Code/ZIP Code for the District of San Diego in the Costa Rica Province of Cartago and the Canton of La Unión. The neighborhoods of Girales, Invu San Diego, Rincón Mesén, San Martín, Santiago del Monte and Tacona are located in Postal Code 30302.
| Postal Code | 30302 |
| Postal Code Name | San Diego |
| Province | Cartago Province |
| Canton | La Unión Canton |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 10307 30106 30111 30301 30303 30304 30308 |