| Place | Post Code |
|---|---|
| Bagbag I, Rosario | 4106 |
| Bagbag II, Rosario | 4106 |
| Kanluran, Rosario | 4106 |
| Ligtong I, Rosario | 4106 |
| Ligtong II, Rosario | 4106 |
| Ligtong III, Rosario | 4106 |
| Ligtong IV, Rosario | 4106 |
| Muzon I, Rosario | 4106 |
| Muzon II, Rosario | 4106 |
| Poblacion, Rosario | 4106 |
| Sapa I, Rosario | 4106 |
| Sapa II, Rosario | 4106 |
| Sapa III, Rosario | 4106 |
| Sapa IV, Rosario | 4106 |
| Silangan I, Rosario | 4106 |
| Silangan II, Rosario | 4106 |
| Tejeros Convention, Rosario | 4106 |
| Wawa I, Rosario | 4106 |
| Wawa II, Rosario | 4106 |
| Wawa III, Rosario | 4106 |