- Stanton Mobile Park
- Staplehurst
- Stapleton
- Star
- Steele City
- Stegall
- Steinauer
- Stella
- Sterling
- Stockham
- Stockville
- Stokes Ranch
- Story
- Strang
- Stratton
- Straussville
- Stromsburg
- Stuart
- Sumner
- Sumter
- Sun Valley Trailer Court
- Sunflower Mobile Home Park
- Sunol
- Sunrise Village Mobile Home Park
- Sunset Acres
- Superior
- Surprise
- Sutherland
- Sutton
- Swan Lake