- Seal Island
- Spar Island
- Shawomet
- Shippee Corner
- Silver Hook
- Spencers Corner
- Spring Green
- Spring Lake
- Summit
- Sachuest
- Sakonnet
- Sassafras Island
- Shell Island
- South Portsmouth
- Spectacle Island
- Stony Reef
- Saundersville
- Sayles Bleachery
- Saylesville
- Saylesville Highlands
- Silver Lake
- Silver Spring
- Simmons Corner
- Simmonsville
- Six Corners
- Snake Island
- Social
- Sockanosset
- South Foster
- Spragueville