- Salmon Colonia
- Sammy Martinez Colonia
- San Carlos
- San Fernando Colonia
- San Jose Colonia
- San Juan Colonia
- San Roman
- Sandoval
- Santa Anna
- Santa Catarina
- Santa Cruz Number 2 Colonia
- Santa Margarita
- Santa Rosa Colonia
- Santel Colonia
- Share 52 Colonia
- Solis Colonia
- Sunset Colonia
- South Hanlon
- Stubbs
- Styx
- Sterling City
- Sisterdale
- Stinnett
- Sandlin
- Stowell
- Strawn
- Streetman
- Sudan
- Sugar Land
- Sullivan City