| Locality | Post Code |
|---|---|
| Big Rock, Buchanan | 24603 |
| Conaway, Buchanan | 24603 |
| Davenport, Buchanan | 24239 |
| Grundy, Buchanan | 24614 |
| Harman, Buchanan | 24628 |
| Hurley, Buchanan | 24620 |
| Keen Mountain, Buchanan | 24624 |
| Mavisdale, Buchanan | 24627 |
| Maxie, Buchanan | 24628 |
| Oakwood, Buchanan | 24631 |
| Patterson, Buchanan | 24631 |
| Pilgrims Knob, Buchanan | 24634 |
| Raven, Buchanan | 24639 |
| Rowe, Buchanan | 24646 |
| Royal City, Buchanan | 24614 |
| Shortt Gap, Buchanan | 24647 |
| Stacy, Buchanan | 24614 |
| Vansant, Buchanan | 24656 |
| Whitewood, Buchanan | 24657 |
| Wolford, Buchanan | 24658 |