| Business | Phone |
| Trinity County Appraisal Dist 112 Elm Dr, Trinity 75862 | (936) 594-7413 |
| Trinity County Juvenile Prbtn 610 S Robb St C, Trinity 75862 | (936) 642-1595 |
| Trinity County Precinct 3 9111 S State Highway 94, Trinity 75862 | (936) 594-9354 |
| Justices Of Peace Precinct 2 N Elm & W Main Stamp;, Trinity 75862 | (936) 594-2011 |
| Justices Of Peace Precinct 3 Elm St, Trinity 75862 | (936) 594-3456 |
| Martin Senior Svc Ctr 400 S Walker St, Trinity 75862 | (936) 594-2625 |