Post Offices List in Marshall County, West Virginia:
| Benwood Post Office | 401 Mcmechen St, Benwood, WV 26031 |
| Cameron Post Office | 73 High St, Cameron, WV 26033 |
| Dallas Post Office | 9 Main St, Dallas, WV 26036 |
| Glen Dale Post Office | 401 4th St, Glen Dale, WV 26038 |
| Mcmechen Post Office | 717 Marshall St, Mcmechen, WV 26040 |
| Moundsville Post Office | 1214 3rd St, Moundsville, WV 26041 |
| Proctor Post Office | 1 State Route 2, Proctor, WV 26055 |