- Sonna
- Starkey
- Stevens
- Swan Lake
- Sanders
- Silvertip Landing
- Star Ranch Summer Home Area
- Smith Springs
- Stanton Crossing
- Sawyer
- Selle
- Seneacquoteen
- Sherwood Beach
- Strong Island
- Sunnyside
- Staffel Island
- Schnoors
- Shiloh
- Sinclair
- Scoville
- Smith Corrals
- Selby
- Soldier
- Settlers Island
- Sign Island
- Simplot
- Smiths Island
- Sunnyslope
- Swartz Corner
- Sheep Island