| Locality | Post Code |
|---|---|
| Angier, Harnett | 27501 |
| Buies Creek, Harnett | 27506 |
| Bunnlevel, Harnett | 28323 |
| Cameron, Harnett | 28326 |
| Coats, Harnett | 27521 |
| Dunn, Harnett | 28334 |
| Erwin, Harnett | 28339 |
| Kipling, Harnett | 27543 |
| Lillington, Harnett | 27546 |
| Mamers, Harnett | 27552 |
| Olivia, Harnett | 28368 |