| Code | Name | Region |
|---|---|---|
| AUSOM | Somerton | VIC |
| AUSPS | Somerton Park | SA |
| AUSMV | Somerville | VIC |
| AUSAR | Sorrento | VIC |
| AUSBN | South Brisbane | QLD |
| AUSFE | South Fremantle | WA |
| AUZGL | South Galway | QLD |
| AUSGD | South Guilford | WA |
| AUSLN | South Launceston | TAS |
| AUSMN | South Maclean | QLD |
| AUSLM | South Melbourne | VIC |
| AUSOI | South Molle Island | QLD |
| AUSPH | South Perth | WA |
| AUSTR | South Trees | QLD |
| AUSWR | South West Rocks | NSW |
| AUSWO | South Windsor | NSW |
| AUSYA | South Yarra | VIC |
| AUSBK | Southbank | VIC |
| AUSQC | Southern Cross | WA |
| AUSHQ | Southport | QLD |
| AUSHT | Shepparton | VIC |
| AUSRH | Shoreham | VIC |
| AUJHQ | Shute Harbour | QLD |
| AUSSP | Silver Plains | QLD |
| AUSVD | Silverdale | NSW |
| AUSIL | Silverwater | NSW |
| AUSIX | Singleton | NSW |
| AUSCK | Sisters Creek | TAS |
| AUSKA | Skardon River | QLD |
| AUSKV | Skua Venture (oil Terminal) | NT |
| AUSKY | Skye | SA |
| AUSMG | Smeaton Grange | NSW |
| AUSHU | Smith Point | NT |
| AUSMD | Smithfield | NSW |
| AUSGY | Smiths Gully | VIC |
| AUSIO | Smithton | TAS |
| AUSNB | Snake Bay | NT |
| AUWSS | Snowtown | SA |
| AUSMY | Somersby | NSW |
| AUSST | Somerset | TAS |
| AUFTH | Seaforth | NSW |
| AUILM | Seaholme | VIC |
| AUSET | Seaton | SA |
| AUSSD | Seddon | VIC |
| AUNS9 | Sefton | NSW |
| AU5CI | Selby | VIC |
| AUSBH | Sellick Beach | SA |
| AUSSH | Sellicks Hill | SA |
| AUSFD | Seppeltsfield | SA |
| AUSVH | Seven Hills | NSW |