| Locality | Post Code |
|---|---|
| Appling, Columbia | 30802 |
| Augusta, Columbia | 30907 |
| Berzelia, Columbia | 30814 |
| Campania, Columbia | 30814 |
| Evans, Columbia | 30809 |
| Grovetown, Columbia | 30813 |
| Harlem, Columbia | 30814 |
| Leah, Columbia | 30802 |
| Martinez, Columbia | 30907 |
| Phinizy, Columbia | 30802 |
| Pollards Corner, Columbia | 30802 |
| Pumpkin, Columbia | 30814 |