| Place | Post Code |
|---|---|
| Cartonera, Gravilias | 10312 |
| Claveles, Gravilias | 10312 |
| Damasco, Gravilias | 10312 |
| Diamante, Gravilias | 10312 |
| Esmeraldas, Gravilias | 10312 |
| Fortuna, Gravilias | 10312 |
| Fortunita, Gravilias | 10312 |
| Gravilias, Gravilias | 10312 |
| Porvenir, Gravilias | 10312 |
| Raya, Gravilias | 10312 |
| Riberalta, Gravilias | 10312 |
| Villanueva, Gravilias | 10312 |