| Idaho State Locator Citys, Towns, Villages, and Other beginning withthe letter S |
| CITY/TOWN/VILLAGE/ETC. | LOCATED IN | COUNTY |
| Sage Junction | Roberts | Jefferson |
| Sagle | Blanchard-Glengary | Bonner |
| Salem | Sugar City | Madison |
| Salmon | Salmon | Lemhi |
| Samaria | Malad | Oneida |
| Samnuels | Sandpoint | Bonner |
| Sand Hollow | New Plymouth | Payette |
| Sanders | Tensed | Benewah |
| Sandpoint | Sandpoint | Bonner |
| Santa | St Maries | Benewah |
| Sawtooth City | Ketchum | Blaine |
| Sawyer | Blanchard-Glengary | Bonner |
| Schiller | Fort Hall | Power |
| Selby | East Camas | Camas |
| Selle | Sandpoint | Bonner |
| Shelley | Shelley | Bingham |
| Shoshone | Shoshone | Lincoln |
| Shoshone Falls | Eden-Hazelton | Jerome |
| Shoup | Forney | Lemhi |
| Siekel Butte | Murphy | Owyhee |
| Silver Beach | Spirit Lake-Athol | Kootenai |
| Silver City | Murphy | Owyhee |
| Silver Sands Beach | Spirit Lake-Athol | Kootenai |
| Silverton | Wallace | Shoshone |
| Slickpoo | Winchester | Lewis |
| Small | West Clark | Clark |
| Smelterville | Kellogg | Shoshone |
| Smiths Ferry | Cascade | Valley |
| Soda Springs | Soda Springs | Caribou |
| Soldier | West Camas | Camas |
| Southwick | Leland-Rimrock | Nez Perce |
| Spalding | Lapwai | Nez Perce |
| Spencer | East Clark | Clark |
| Spirit Lake | Spirit Lake-Athol | Kootenai |
| Springdale | Delco | Cassia |
| Springfield | Aberdeen | Bingham |
| Springs | Elk City | Idaho |
| Springston | Harrison | Kootenai |
| Squirrel | Ashton | Freemont |
| St Anthony | St Anthony | Freemont |
| St Charles | Paris | Bear Lake |
| St Joe | St Maries | Benewah |
| St Maries | St Maries | Benewah |
| Stanford | Deary-Bovill | Latah |
| Stanley | Stanley | Custer |
| Stanley Springs | Island Park | Freemont |
| Star | Eagle | Ada |
| Starkey | Council | Adams |
| State Line Village | Post Falls-Rathdrum | Kootenai |
| Sterling | Aberdeen | Bingham |
| Stibnite | Stibnite | Valley |
| Stites | Kooskia | Idaho |
| Stone | Holbrook | Oneida |
| Stricker | Kimberly | Twin Falls |
| Sublett | Albion | Cassia |
| Sugar City | Sugar City | Madison |
| Sugarloaf | Hunt | Jerome |
| Summitt | Peck | Nez Perce |
| Sun Valley | Ketchum | Blaine |
| Sunbeam | Stanley | Custer |
| Sunbeam Mine | Stanley | Custer |
| Sunnydall | Thorton | Madison |
| Sunnyside | Clarks Forks | Bonner |
| Sunnystone | Huston | Canyon |
| Sutters | Worley | Kootenai |
| Swan Falls | Orchard | Ada |
| Swan Valley | Swan Valley | Bonneville |
| Swanlake | Downey | Bannock |
| Sweet | Sweet | Gem |
| Sweetwater | Lapwai | Nez Perce |
| Sylva Ranch | Stanley | Custer |
| Syringa | Elk City | Idaho |