- Scrogum Island
- Selchs Mobile Home Park
- Snake Island
- Schey Acres
- Seminary Springs
- Sherwood Forest Heights
- Sherwood Glen
- South Madison
- Springfield Corners
- Stone
- Sunburst
- Sager Island
- Saylesville
- Second Stony Island
- Seering Island
- Small Island
- Snipe Island
- South Beaver Dam
- South Randolph
- Squak Island
- Steamboat Island
- Stone Island
- Stony Island
- Stony Island
- Strawberry Island
- Sugar Island
- Sunset Beach
- Salona
- Shoemaker Point
- Sister Islands