S
- Saint Andrews Park Condo
- Saint George
- Saint John
- Salduro
- Salem
- Salina
- Saline
- Saltair
- Salt Lake City
- Samak
- Sandy
- Sandy City
- Sandy Hills
- Santa Clara
- Santaquin
- Santio Crossing
- Saratoga Resort
- Saratoga Springs
- Scipio
- Scofield
- Sego
- Sevier
- Sharp
- Shauntie
- Shenendoah City
- Shivwits
- Shunesburg
- Sierra Grande
- Sigurd
- Silsbee
- Silver City
- Silver Creek Junction
- Silver Fork
- Sixmile Point
- Sky View
- Slaterville
- Smithfield
- Snowville
- Snyderville
- Soapstone Summer Home Area
- Soldier Crossing
- Soldier Summit
- Solitude
- Solitude
- Soma
- South Bridge Plat A
- Southern Trailer Park
- South Jordan
- South Jordan Heights
- South Ogden
- South Salt Lake
- South Weber
- South Willard
- Spanish Fork
- Spanish Valley
- Spring Canyon
- Spring City
- Springdale
- Springdell
- Spring Glen
- Spring Lake
- Springville
- Spry
- Squaw Crossing
- Standardville
- Standrod
- Stansbury Park
- Starr
- Sterling
- Stockton
- Stoddard
- Stonebridge Condo
- Storm Mountain Terrace
- Strong
- Sugarville
- Sulphurdale
- Summit
- Summit Park
- Summit Point
- Sundowner Condominium
- Sunnyside
- Sunridge Highlands
- Sunset
- Sutherland
- Sutro
- Syracuse