| Business | Phone |
| Waller County Commissioner 12620 Fm 1887 Rd, Hempstead 77445 | (979) 826-7634 |
| Waller County Road Supt 836 Austin St, Hempstead 77445 | (979) 826-3357 |
| Waller County Elections Office 846 6th St 1, Hempstead 77445 | (979) 826-7643 |
| Waller County Road & Bridge 775 Business 290 E, Hempstead 77445 | (979) 826-7670 |
| Waller County Extension Office 846 6th St, Hempstead 77445 | (979) 826-7651 |
| Waller County Indigent Health 836 Austin St 316, Hempstead 77445 | (979) 826-7730 |
| Waller County Justice Of Peace 12620 Fm 1887 Rd, Hempstead 77445 | (979) 826-7637 |
| Waller County Justice Of Peace 836 Austin St 326, Hempstead 77445 | (979) 826-7745 |
| Waller County Rural Addressing 836 Austin St 208, Hempstead 77445 | (979) 826-7702 |
| Waller County Veterans Svc 836 Austin St 208, Hempstead 77445 | (979) 826-7733 |