Post Offices List in Polk County, North Carolina:
| Columbus Post Office | 126 Ward St, Columbus, NC 28722 |
| Lynn Post Office | 2633 Lynn Rd, Lynn, NC 28750 |
| MIll Spring Post Office | 50 School Rd, Mill Spring, NC 28756 |
| Saluda Post Office | 102 E Main St, Saluda, NC 28773 |
| Tryon Post Office | 95 Pacolet St, Tryon, NC 28782 |