| Place | Post Code |
|---|---|
| Cadongdongan, Santa Praxedes | 3521 |
| Capacuan, Santa Praxedes | 3521 |
| Centro I, Santa Praxedes | 3521 |
| Centro II, Santa Praxedes | 3521 |
| Macatel, Santa Praxedes | 3521 |
| Portabaga, Santa Praxedes | 3521 |
| Salungsong, Santa Praxedes | 3521 |
| San Juan, Santa Praxedes | 3521 |
| San Miguel, Santa Praxedes | 3521 |
| Sicul, Santa Praxedes | 3521 |