- Sunnyslope
- Sunset Farm
- Scammon Landing
- Sixprong
- Smithville
- Snowden
- Squaw Islands
- Straight Point
- Sundale
- Swale
- Saint Urban
- Siler
- Silver Brook
- Swofford
- Seven Bays
- Sherman
- Squaxin Island
- Stimson
- Stretch Island
- Sunbeach
- Sunset Beach
- Seatons Grove
- Starr
- Sand - Lo Trailer Park
- Sand Island
- Seaview
- Snag Islands
- Stringtown
- Sutico
- Swem