| Business | Phone |
| Rockwall Cnty 911 Coordinator 1101 Ridge Rd, Rockwall 75087 | (972) 882-2873 |
| Rockwall County Agricultural 101 S Fannin St, Rockwall 75087 | (972) 882-0375 |
| Rockwall County Commissioners 101 E Rusk St 202, Rockwall 75087 | (972) 882-2881 |
| Rockwall County Constables 960 T L Townsend Dr, Rockwall 75087 | (972) 882-2832 |