| Place | Postal Code |
|---|---|
| Agua de Castilla, San Agustín | None |
| Alota, San Agustín | None |
| Cerro Gordo, San Agustín | None |
| Mejillones, San Agustín | None |
| Rodeo, San Agustín | None |
| San Agustin, San Agustín | None |
| Sora, San Agustín | None |
| Todos Santos, San Agustín | None |
| Postal Codes in Enrique Baldivieso | |
|---|---|
| San Agustín, Enrique Baldivieso | |