- Shamrock Colony
- Sheffield
- Swett
- Sand Islands
- Scout Island
- Sheldon Trailor Town
- Sundahl Trailer Court
- Sunnyview
- Shelby
- Skunk Island (historical)
- Strehlow Island (historical)
- Silver Lake Colony
- Snake Creek
- Sanator
- Spokane
- State Game Lodge
- Sylvan Lake Resort
- Sand Hill Subdivision
- Saint Lawrence
- Scotland
- Selby
- Saint Charles
- Saint Francis
- Salem
- Seneca
- Sherman
- Spencer
- Springfield
- Stratford
- Sturgis