- Sac Bay
- Saint Jacques
- Saint Martin Island
- Saint Nicholas
- Saint Vital Island
- Salva
- Sand Island
- Snake Island
- Soo Hill
- Stonington
- Summer Island
- Skidmore
- Spruce
- Shaytown
- Stalls Corner
- Stutsmanville
- Shady Acres Mobile Home Park
- South Creek Village Mobile Home Park
- South Valley Estates Mobile Home Park
- Stage Island
- Swartz Creek Estates Mobile Home Park
- Secord
- Skeels
- Sugar Rapids
- Siemens
- Stickley
- Stony Point
- Saint Charles
- Saint Joseph
- Sanford