| Business | Phone |
| 229 District Court 502 N Britton Ave, Rio Grande City 78582 | (956) 487-2636 |
| Starr Cnty Court At Law Judge 401 N Britton Ave, Rio Grande City 78582 | (956) 487-8497 |
| Starr County District Clerk 401 N Britton Ave 304, Rio Grande City 78582 | (956) 487-8482 |
| Starr County Judge 401 N Britton Ave, Rio Grande City 78582 | (956) 487-8015 |
| Starr County Juvenile Justice 401 N Britton Ave 100, Rio Grande City 78582 | (956) 488-2932 |