| Place | Post Code |
|---|---|
| Aguas Buenas, San Antonio | 2660000 |
| Leyda, San Antonio | 2660000 |
| San Antonio, San Antonio | 2660000 |
| All postal codes in San Antonio | |
|---|---|
| Algarrobo, San Antonio | |
| Cartagena, San Antonio | |
| El Quisco, San Antonio | |
| El Tabo, San Antonio | |
| San Antonio, San Antonio | |
| Santo Domingo, San Antonio | |