| Business | Phone |
| Grimes Cnty Justice-The Peace 382 Fm 149 Rd W, Anderson 77830 | (936) 873-2415 |
| Grimes Cnty Voter Registration 100 S Main St, Anderson 77830 | (936) 873-3100 |
| Grimes County 9-1-1 Addressing 114 W Buffington Ave, Anderson 77830 | (936) 873-2985 |
| Grimes County Appraisal 360 Hill St, Anderson 77830 | (936) 873-2163 |
| Grimes County Courthouse 100 Main St, Anderson 77830 | (936) 873-2111 |
| Grimes County Septic Dept 1010 Highway 90, Anderson 77830 | (936) 873-2111 |