| Location | States or Territories | Abbreviation | Postcode |
|---|---|---|---|
| Saltwater River | Tasmania | TAS | 7186 |
| Sandfly | Tasmania | TAS | 7150 |
| Sandford | Tasmania | TAS | 7020 |
| Sandy Bay | Tasmania | TAS | 7005 |
| Sandy Bay, PO Boxes | Tasmania | TAS | 7006 |
| Sassafras | Tasmania | TAS | 7307 |
| Savage River | Tasmania | TAS | 7321 |
| Scamander | Tasmania | TAS | 7215 |
| Scopus | Tasmania | TAS | 7330 |
| Scotchtown | Tasmania | TAS | 7330 |
| Scottsdale | Tasmania | TAS | 7260 |
| Sea Elephant, King Island | Tasmania | TAS | 7256 |
| Selbourne | Tasmania | TAS | 7292 |
| Seven Mile Beach | Tasmania | TAS | 7170 |
| Seymour | Tasmania | TAS | 7215 |
| Shannon | Tasmania | TAS | 7030 |
| Shearwater | Tasmania | TAS | 7307 |
| Sheffield | Tasmania | TAS | 7306 |
| Shorewell Park | Tasmania | TAS | 7320 |
| Sidmouth | Tasmania | TAS | 7270 |
