| Locality | Post Code |
|---|---|
| Isla Real, Villalbin | 121602 |
| Isla Ro'y, Villalbin | 121603 |
| Isla Ro'y Sub-Urbano, Villalbin | 121603 |
| Manantial, Villalbin | 121603 |
| Ñu Pa'U, Villalbin | 121602 |
| San Francisco, Villalbin | 121602 |
| San Miguel, Villalbin | 121603 |
| San Sebastian, Villalbin | 121603 |
| Teniente Sanchez, Villalbin | 121602 |
| Teniente Sanchez Sub-Urbano, Villalbin | 121602 |
| Urbano, Villalbin | 121601 |