| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Safety Bay | city | Western Australia | Australia | -32.30 | 115.70 | 3 | 11355 |
| Saint Ives | city | Western Australia | Australia | -31.38 | 121.82 | 1669 | 0 |
| Sale River | city | Western Australia | Australia | -15.99 | 125.01 | 875 | 0 |
| Salgash | city | Western Australia | Australia | -21.27 | 119.82 | 830 | 0 |
| Salgash Mining Centre | city | Western Australia | Australia | -21.27 | 119.82 | 830 | 0 |
| Salmon Gums | city | Western Australia | Australia | -32.98 | 121.63 | 1076 | 0 |
| Salmon Guns | city | Western Australia | Australia | -32.98 | 121.63 | 1076 | 0 |
| Sandfire | city | Western Australia | Australia | -19.77 | 121.09 | 183 | 0 |
| Sandfire Roadhouse | city | Western Australia | Australia | -19.77 | 121.09 | 183 | 0 |
| Sandstone | city | Western Australia | Australia | -27.99 | 119.30 | 1820 | 0 |
| Sawyers Valley | city | Western Australia | Australia | -31.90 | 116.20 | 1007 | 7947 |
| Scaddan | city | Western Australia | Australia | -33.44 | 121.73 | 334 | 0 |
| Scarborough | city | Western Australia | Australia | -31.90 | 115.75 | 9 | 88031 |
| Scarborough Beach | city | Western Australia | Australia | -31.90 | 115.75 | 9 | 88031 |
| Seabird | city | Western Australia | Australia | -31.28 | 115.44 | 3 | 74 |
| Secret Harbour | city | Western Australia | Australia | -32.40 | 115.75 | 19 | 21996 |
| Serpentine | city | Western Australia | Australia | -32.36 | 115.98 | 830 | 0 |
| Shackleton | city | Western Australia | Australia | -31.93 | 117.83 | 1000 | 0 |
| Shark Bay | city | Western Australia | Australia | -25.92 | 113.54 | 3 | 0 |
| Shaw | city | Western Australia | Australia | -22.10 | 119.00 | 1669 | 0 |
| Shellborough | city | Western Australia | Australia | -20.02 | 119.37 | 3 | 0 |
| Shenton Park | city | Western Australia | Australia | -31.96 | 115.80 | 52 | 131088 |
| Shotts | city | Western Australia | Australia | -33.38 | 116.27 | 830 | 0 |
| Shultz Cairn | city | Western Australia | Australia | -20.13 | 128.67 | 1253 | 0 |
| Siberia | city | Western Australia | Australia | -30.23 | 120.95 | 1669 | 0 |
| Singleton | city | Western Australia | Australia | -32.45 | 115.75 | 26 | 24030 |
| Smailes Mill | city | Western Australia | Australia | -32.10 | 116.18 | 954 | 224 |
| Soansville | city | Western Australia | Australia | -21.52 | 119.15 | 1128 | 0 |
| Soansville Mining Centre | city | Western Australia | Australia | -21.52 | 119.15 | 1128 | 0 |
| South Burracoppin | city | Western Australia | Australia | -31.57 | 118.12 | 997 | 149 |
| South Kalamunda | city | Western Australia | Australia | -31.98 | 116.07 | 895 | 34198 |
| South Kulin | city | Western Australia | Australia | -32.73 | 118.08 | 1023 | 0 |
| South Kumminin | city | Western Australia | Australia | -32.20 | 118.33 | 997 | 0 |
| South Lake Vasley | city | Western Australia | Australia | -32.83 | 119.53 | 1227 | 0 |
| South Quaisading | city | Western Australia | Australia | -32.17 | 117.47 | 964 | 0 |
| South Tammin | city | Western Australia | Australia | -31.81 | 117.54 | 984 | 0 |
| South Trayning | city | Western Australia | Australia | -31.23 | 117.78 | 1000 | 0 |
| South Walgoolan | city | Western Australia | Australia | -31.48 | 118.58 | 1223 | 43 |
| Southern Brook | city | Western Australia | Australia | -31.55 | 116.83 | 830 | 11 |
| Southern Cross | city | Western Australia | Australia | -31.23 | 119.32 | 1669 | 0 |
| Southern Hills | city | Western Australia | Australia | -32.19 | 122.83 | 1669 | 0 |
| Sovereign Hill | city | Western Australia | Australia | -31.30 | 115.54 | 26 | 149 |
| Spargoville | city | Western Australia | Australia | -31.23 | 121.47 | 1669 | 0 |
| Spearwood | city | Western Australia | Australia | -32.10 | 115.78 | 85 | 67316 |
| Speddingup | city | Western Australia | Australia | -33.52 | 121.75 | 830 | 0 |
| Speewah | city | Western Australia | Australia | -16.35 | 128.03 | 974 | 0 |
| Spencers Brook | city | Western Australia | Australia | -31.73 | 116.63 | 830 | 383 |
| Spring Hill | city | Western Australia | Australia | -31.72 | 116.68 | 830 | 1335 |
| Spring Park | city | Western Australia | Australia | -27.93 | 119.17 | 1856 | 0 |
| Stathams | city | Western Australia | Australia | -31.93 | 116.05 | 830 | 31434 |
| Station Peak | city | Western Australia | Australia | -21.17 | 118.18 | 830 | 0 |
| Station Peak Mining Centre | city | Western Australia | Australia | -21.17 | 118.18 | 830 | 0 |
| Stewart | city | Western Australia | Australia | -30.92 | 120.82 | 1706 | 0 |
| Stirling Estate | city | Western Australia | Australia | -33.85 | 115.53 | 239 | 444 |
| Stone Knife | city | Western Australia | Australia | -27.40 | 126.50 | 1669 | 0 |
| Stoneville | city | Western Australia | Australia | -31.88 | 116.17 | 997 | 13342 |
| Stoneville | city | Western Australia | Australia | -30.87 | 121.77 | 1669 | 0 |
| Strachan | city | Western Australia | Australia | -34.40 | 116.46 | 830 | 149 |
| Stratham | city | Western Australia | Australia | -33.47 | 115.59 | 9 | 492 |
| Stratham | city | Western Australia | Australia | -33.47 | 115.60 | 13 | 525 |
| Strelley Gorge | city | Western Australia | Australia | -21.12 | 119.05 | 849 | 0 |
| Strelly Gorge | city | Western Australia | Australia | -21.12 | 119.05 | 849 | 0 |
| Stretton | city | Western Australia | Australia | -32.54 | 117.70 | 994 | 0 |
| Subiaco | city | Western Australia | Australia | -31.95 | 115.80 | 59 | 148462 |
| Sussex Mill | city | Western Australia | Australia | -33.88 | 115.73 | 278 | 0 |
| Swan View | city | Western Australia | Australia | -31.88 | 116.05 | 830 | 27887 |
| Swanbourne | city | Western Australia | Australia | -31.97 | 115.78 | 36 | 106748 |