13 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 17815 | Bloomsburg | 29,324 |
| 18603 | Berwick | 18,985 |
| 17820 | Catawissa | 5,528 |
| 17814 | Benton | 4,806 |
| 17824 | Elysburg | 3,840 |
| 17846 | Millville | 3,796 |
| 17859 | Orangeville | 2,637 |
| 17878 | Stillwater | 1,573 |
| 18631 | Mifflinville | 1,109 |
| 17888 | Wilburton | 497 |
| 17920 | Aristes | 208 |
| 17945 | Locustdale | 191 |
| 17858 | Numidia | 68 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Columbia County, Pennsylvania (US Census).