- Silsbee
- Stansbury Island
- Santio Crossing
- Squaw Crossing
- Saratoga Resort
- Silver Lake Summer Home Area
- Snow
- Springdell
- Sundance
- Sutro
- Soapstone Summer Home Area
- Shem
- Shunesburg
- Silver Reef
- Southern Trailer Park
- Saint George
- Saratoga Springs
- Salem
- Salina
- Santa Clara
- Smithfield
- Spring City
- Spring Lake
- Springdale
- Springville
- Sterling
- Stockton
- Sunnyside
- Sunset
- Syracuse