| Business | Phone |
| U S Post Office 1 W Church St, Martinsville 24112 | (276) 638-1607 |
| U S Post Office 1123 Spruce St, Martinsville 24112 | (276) 632-4745 |
| U S Post Office 4 Askin St, Martinsville 24112 | (276) 632-9550 |
| Us Post Office 900 Memorial Blvd N, Martinsville 24112 | (276) 000-1111 |