| Business | Phone |
| Job Corps Health Svc 2800 Highway 21, San Marcos 78666 | (512) 396-6513 |
| San Marcos Hays County Ems 1305 N I H 35, San Marcos 78666 | (512) 353-5115 |
| Texas Health Info Mgmt Assctn 3331 Ranch Rd 104, San Marcos 78666 | (512) 392-4715 |
| Hays County Health Dept 401 Broadway St, San Marcos 78666 | (512) 393-2031 |