| Business | Phone |
| Hamilton County Auditor Courthouse, Hamilton 76531 | (254) 386-3549 |
| Hamilton County Treasurer 100 Main St, Hamilton 76531 | (254) 386-5315 |
| Hamilton Tax Assessor 101 E Main St, Hamilton 76531 | (254) 386-5114 |
| Hamilton Tax Assessor 102 N Rice St, Hamilton 76531 | (254) 386-5114 |