| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ciruelos, Mariquina | 5150000 |
| Postal/ZIP Codes in Estación Mariquina, Mariquina | 5150000 |
| Postal/ZIP Codes in Mehuín, Mariquina | 5150000 |
| Postal/ZIP Codes in Pelchuquín, Mariquina | 5150000 |
| Postal/ZIP Codes in San José de la Mariquina, Mariquina | 5150000 |