| Business | Phone |
| Texas National Guard 201 City Park St, San Marcos 78666 | (512) 392-0030 |
| Us Air Force Recruiting 200 Springtown Way 513, San Marcos 78666 | (512) 805-8308 |
| Us Army Reserve 631 E Hopkins St, San Marcos 78666 | (512) 396-4036 |
| Us Marine Corps Recruiting 901 Highway 80 107, San Marcos 78666 | (512) 396-3711 |