- San Luis
- San Miguel
- San Pablo
- San Pedro Creek
- San Pedro Overlook
- Señorito
- Seven Springs
- Sierra de los Pinos
- Sile
- Sulphur Springs
- Sundance Mesa
- Self Place
- Spencerville
- South San Ysidro
- Salitre
- San Antonio
- San Augustin
- San Geronimo
- San Juan
- San Miguel
- San Pablo
- San Rafael
- San Ramon
- Sheridan
- Soham
- San Pedro
- Santo Nino
- Seton Village
- Spiess
- Santana Place