| Locality | Post Code |
|---|---|
| Salinas Grandes, Biedma | U9121 XAM |
| San José, Biedma | U9121 XAN |
| Sierra Chica, Biedma | U9121 XAW |
| Chubut Postal Codes | |
|---|---|
| Telsen | Tehuelches |
| Sarmiento | Río Senguer |
| Rawson | Paso de Indios |
| Mártires | Languiñeo |
| Gastre | Gaiman |
| Futaleufú | Florentino Ameghino |
| Escalante | Cushamen |
| Biedma | |