| Locality | Post Code |
|---|---|
| Pomona, Avellaneda | R8367 |
| Puesto Faria, Avellaneda | R8360 XAG |
| Rinconada, Avellaneda | R8360 XAH |
| Río Salado, Avellaneda | R8134 XAB |
| Salitral Negro, Avellaneda | R8363 XAE |
| Santa Genoveva, Avellaneda | R8363 XAF |
| Santa Gregoria, Avellaneda | R8364 XAA |
| Santa Nicolasa, Avellaneda | R8364 XAB |
| Sauce Blanco, Avellaneda | R8360 XAL |
| Río Negro Postal Codes | |
|---|---|
| Ñorquincó | Valcheta |
| San Antonio | Pilcaniyeu |
| Pichi Mahuida | General Roca |
| El Cuy | Conesa |
| Bariloche | Avellaneda |
| Adolfo Alsina | 9 de Julio |
| 25 de Mayo | |