| Locality | Post Code |
|---|---|
| Candelaria, Monte San Juan | 01405 |
| Concepción, Monte San Juan | 01405 |
| El Rosario, Monte San Juan | 01405 |
| Loma De Las Delicias, Monte San Juan | 01405 |
| Monte San Juan, Monte San Juan | 01405 |
| San Andrés, Monte San Juan | 01405 |
| San José, Monte San Juan | 01405 |
| San Martín, Monte San Juan | 01405 |