- Sand Island
- Sand Island
- Sand Island
- Sands 55 Plus Mobile Park
- Sandy Acres Mobile Home Park
- Sandy Bend
- Sandy Island
- Santiago
- Sapolil
- Sappho
- Sara
- Saratoga
- Saratoga Shores
- Sarvis Mobile Estates
- Satellite Island
- Satsop
- Satus
- Sauk
- Savage Island
- Sawyer
- Saxby
- Saxon
- Scammon Landing
- Scandia
- Scenic
- Schlomer
- Schneiders Prairie
- Schoonover
- Schrag
- Schwana