| Locality | Post Code |
|---|---|
| Río Blanco, Peñamiller | 76460 |
| Salinas, Peñamiller | 76477 |
| San Francisco, Peñamiller | 76453 |
| San Isidro (San Isidro Boquillas), Peñamiller | 76474 |
| San Juanico, Peñamiller | 76489 |
| San Lorenzo, Peñamiller | 76495 |
| San Marcos, Peñamiller | 76454 |
| San Miguel Palmas, Peñamiller | 76478 |
| Sebastianes, Peñamiller | 76489 |
| Villa Emiliano Zapata (Extoraz), Peñamiller | 76495 |
| Villas de Guadalupe, Peñamiller | 76454 |
| Vista Alegre, Peñamiller | 76489 |