- Sabinal
- Sabinetown
- Sexton
- Strickland Crossing
- Stringtown
- Stumptown
- Sachse
- Sadler
- Sparenberg
- Saint Hedwig
- Saint Jo
- Salado
- Salineño
- Samnorwood
- San Angelo
- San Augustine
- Sunrise
- San Elizario
- Snow Hill
- Spring Hill
- Staley
- Strington
- San Leanna
- San Leon
- Saint Paul Estates Colonia
- Saint Paul Number 1 Colonia
- Second Roosevelt Colonia
- Sherwood Forest Colonia
- Sodville
- Sun Country Estates Colonia