| Locality | Post Code |
|---|---|
| Almedia, Columbia | 17815 |
| Aristes, Columbia | 17920 |
| Ashbury, Columbia | 17859 |
| Bendertown, Columbia | 17859 |
| Benton, Columbia | 17814 |
| Berwick, Columbia | 18603 |
| Bloomsburg, Columbia | 17815 |
| Buckhorn, Columbia | 17815 |
| Catawissa, Columbia | 17820 |
| Central, Columbia | 17814 |
| Coles Creek, Columbia | 17814 |
| Derrs, Columbia | 17814 |
| Elk Grove, Columbia | 17814 |
| Elysburg, Columbia | 17824 |
| Espy, Columbia | 17815 |
| Eyers Grove, Columbia | 17846 |
| Fairmount Spr, Columbia | 17814 |
| Fernville, Columbia | 17815 |
| Iola, Columbia | 17846 |
| Jamison City, Columbia | 17814 |
| Jerseytown, Columbia | 17815 |
| Kulp, Columbia | 17820 |
| Laubachs, Columbia | 17814 |
| Lime Ridge, Columbia | 17815 |
| Locust, Columbia | 17820 |
| Mainville, Columbia | 17815 |