Neighborhoods
- Alamo
- Blanco Gardens
- Castle Forest
- Downtown San Marcos
- Dunbar
- East Guadalupe
- Forest Hills
- Franklin Square-Bishops Crossing
- Greater Castle Forest
- Heritage
- Hills of Hays
- Holland Hills
- Hughson Heights
- Millview East
- Millview West
- Oak Heights
- Rio Vista
- Southwest Hills
- Spring Lake Hills
- Sunset Acres
- Tanglewood
- Victory Gardens
- Wallace Addition
- Westover