| Locality | Post Code |
|---|---|
| Puesto Lorca, Santa Rosa | M5594 XDZ |
| Puesto San Vicente, Santa Rosa | M5594 XEA |
| Punta del Canal, Santa Rosa | M5594 XEB |
| R Bustos, Santa Rosa | M5594 XCT |
| Recoaro, Santa Rosa | M5596 XAB |
| Rodriguez, Santa Rosa | M5594 XCU |
| San Pedro, Santa Rosa | M5594 XCV |
| Santa Ana, Santa Rosa | M5594 XCW |
| Santa María, Santa Rosa | M5594 XCX |
| Santa Rosa, Santa Rosa | M5596 |
| Santo Domingo, Santa Rosa | M5594 XCY |
| T Orozco, Santa Rosa | M5594 XCZ |
| Talquenca, Santa Rosa | M5594 XDA |
| Urisa, Santa Rosa | M5594 XDB |
| Villa Catala, Santa Rosa | M5596 XAC |