Post Offices List in Mills County, Texas:
| Goldthwaite Post Office | 1401 W Front St, Goldthwaite, TX 76844 |
| Mullin Post Office | 108 E Sherman St, Mullin, TX 76864 |
| Priddy Post Office | 13420 Highway 16 N, Priddy, TX 76870 |
| Star Post Office | 39 Fm 1047 S, Star, TX 76880 |