- San Antonio Antonian
- San Antonio Brackenridge
- San Antonio Brooks Academy
- San Antonio Central Catholic
- San Antonio Christian
- San Antonio Cole
- San Antonio Cornerstone
- San Antonio E. Central
- San Antonio Edison
- San Antonio Highlands
- San Antonio Holy Cross
- San Antonio Houston
- San Antonio Jefferson
- San Antonio Lanier
- San Antonio Sam Houston
- San Antonio Southside
- San Antonio St. Gerard
- San Antonio TMI
- San Diego
- San Marcos Baptist
- Santa Fe
- Santa Rosa
-
Schulenburg
-
Shiner
-
Shiner St. Paul
- Sinton
- Skidmore-Tynan
- Smithville
- Somerset
- Somerville
- South San Antonio
- Splendora
- Stafford
- St. Antony
-
St. Joseph
- Stockdale
- Sweeny
