| Locality | Postal Code |
|---|---|
| San Roque, General Eugenio A. Garay | 040607 |
| San Roque Gonzalez de Santa Cruz Sub-Urbano, General Eugenio A. Garay | 040610 |
| Santa Catalina, General Eugenio A. Garay | 040606 |
| Santo Domingo, General Eugenio A. Garay | 040608 |
| Virgen de Fatima, General Eugenio A. Garay | 040608 |