Post Offices List in Morris County, Texas:
| Cason Post Office | 4334 Texas State Highway 11 W, Cason, TX 75636 |
| Daingerfield Post Office | 214 W Scurry St, Daingerfield, TX 75638 |
| Lone Star Post Office | 308 N Main St, Lone Star, TX 75668 |
| Naples Post Office | 203 Main St, Naples, TX 75568 |
| Omaha Post Office | 103 E Main St, Omaha, TX 75571 |