| Business | Phone |
| Williamson County Family Plan 350 Discovery Blvd, Cedar Park 78613 | (512) 260-4243 |
| Williamson Cnty Justice-Peace 350 Discovery Blvd 204, Cedar Park 78613 | (512) 260-4210 |
| Williamson County Commissioner 350 Discovery Blvd 201, Cedar Park 78613 | (512) 260-4280 |
| Williamson County Constables 350 Discovery Blvd 205, Cedar Park 78613 | (512) 260-4270 |