- San Luis Island
- Sedgewood
- Shadycrest
- Sherwood
- Sleepy Hollow
- Snipe
- Southdown
- Southwyck
- Surfside
- Sims
- Smetana
- Steep Hollow
- Stone City
- San Francisco
- San Vicente Crossing
- Santa Elena Crossing
- Shoemaker Place
- Sid Place
- Sierra Chino
- Solis
- Solis Landing
- Stillwell Crossing
- Stuart Place
- Study Butte
- Study Butte-Terlingua
- Shamrock Shores
- San Antonio Prairie
- Scofield
- Scobee
- Shady Grove