| Business | Phone |
| Collin County 401st Dist Court 210 S Mcdonald St, Mckinney 75069 | (972) 548-4241 |
| Collin County 416th Dist Court 210 S Mcdonald St, Mckinney 75069 | (972) 548-4520 |
| Collin County Court At Law 1800 N Graves St, Mckinney 75069 | (972) 548-3860 |
| Collin County Court Probate Mckinney 75069 | (972) 548-3810 |