- Samoset
- Ship Island
- Sixmile Island
- Sleepers Island
- South Barnstead
- Spring Haven
- Steamboat Island
- Stockbridge Corners
- Stonedam Island
- Sumner Island
- Sandwich Landing
- Sandy Island
- Sawyers River
- Scavenger Island
- Seven Sisters Islands
- Shelter Island
- Snowville
- South Chatham
- South Conway
- South Wolfeboro
- Spectacle Island
- Spider Island
- Stamp Act Island
- State Landing
- Stockbridge Corner
- Store Island
- Swill Island
- Scotland
- Shaws Corner
- South Keene