| Business | Phone |
| Williamson Cnty Alcohol Abuse 707 1/2 Main St, Georgetown 78626 | (512) 869-2571 |
| Williamson Cnty Emergency Med 303 Martin Luther King St, Georgetown 78626 | (512) 943-1264 |
| Williamson Cnty Justice-Peace 710 S Main St 203, Georgetown 78626 | (512) 943-1501 |
| Williamson Count Adult Prbtn 710 S Main St 301, Georgetown 78626 | (512) 943-1575 |
| Williamson County Addressing 303 Martin Luther King St, Georgetown 78626 | (512) 930-3370 |
| Williamson County Co-Op Ext 3151 Se Inner Loop, Georgetown 78626 | (512) 943-3300 |
| Williamson County Animal Cntrl 508 S Rock St, Georgetown 78626 | (512) 930-4490 |
| Williamson County Appraisal 510 W 9th St, Georgetown 78626 | (512) 930-3787 |
| Williamson County Commissioner 3151 Se Inner Loop C, Georgetown 78626 | (512) 943-3370 |
| Williamson County Constable 312 Main St, Georgetown 78626 | (512) 930-3312 |
| Williamson County Courthouse 710 S Main St, Georgetown 78626 | (512) 930-4300 |
| Williamson County Elections 301 Inner Loop, Georgetown 78626 | (512) 943-1630 |
| Williamson County Employee 710 S Main St, Georgetown 78626 | (512) 943-1530 |
| Williamson County Envrnmntl 303 Main St, Georgetown 78626 | (512) 930-4390 |
| Williamson County Hot Checks 405 Martin Luther King St, Georgetown 78626 | (512) 943-1138 |
| Williamson County Human Rsrcs 710 S Main St # 2, Georgetown 78626 | (512) 943-1625 |
| Williamson County Info Systems 405 Martin Luther King # 308, Georgetown 78626 | (512) 943-1620 |
| Williamson County Info Systems 710 S Main St, Georgetown 78626 | (512) 943-1620 |
| Williamson County Office 508 S Rock St, Georgetown 78626 | (512) 930-3199 |
| Williamson Juvenile Detention 701 College St, Georgetown 78626 | (512) 930-4449 |
| Williamson Juvenile Svc Adm 2423 Williams Dr, Georgetown 78628 | (512) 930-3333 |
| Honorable John Doefler 710 S Main St # 201, Georgetown 78626 | (512) 943-1550 |