| Business | Phone |
| Cfpo Youth Sport 201 E Mccarty Ln, San Marcos 78666 | (512) 395-0418 |
| San Marcos Ada Coordinator 630 E Hopkins St, San Marcos 78666 | (512) 393-8244 |
| San Marcos Building Inspection 630 E Hopkins St, San Marcos 78666 | (512) 393-8240 |
| San Marcos Calaboose Building 200 M L K, San Marcos 78666 | (512) 393-8421 |
| San Marcos City Activity Ctr 501 E Hopkins Rd, San Marcos 78666 | (512) 393-8280 |
| San Marcos City Clerk 630 E Hopkins St, San Marcos 78666 | (512) 393-8090 |
| San Marcos Environment Engrng 630 E Hopkins St, San Marcos 78666 | (512) 393-8130 |
| San Marcos Finance Accounting 630 E Hopkins St, San Marcos 78666 | (512) 393-8170 |
| San Marcos Gary Softball Cmplx 2600 Highway 21, San Marcos 78666 | (512) 396-1019 |
| San Marcos Human Resources 630 E Hopkins St, San Marcos 78666 | (512) 393-8060 |
| San Marcos Main Street Project 202 E Hopkins St, San Marcos 78666 | (512) 393-8430 |
| San Marcos Management Info Svc 630 E Hopkins St, San Marcos 78666 | (512) 393-8110 |
| San Marcos Trash Collection 630 E Hopkins St, San Marcos 78666 | (512) 393-8026 |
| San Marcos-Public Works 630 E Hopkins St, San Marcos 78666 | (512) 393-8010 |