- Stollsteimer
- Stone City
- Stonegate
- Stoneham
- Stoner
- Stonewall
- Stonewall Gap
- Stonington
- Stove Prairie Landing
- Strasburg
- Stratmoor
- Stratmoor Hills
- Stratton
- Stringtown
- Strong
- Stuart
- Sugar
- Sugar City
- Sugar Junction
- Sugarloaf
- Sullivan
- Summerville
- Summitville
- Sunbeam
- Sunnyside
- Sunnyside
- Sunset
- Sunset City
- Sunshine
- Superior