13 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 17815 | Bloomsburg | 29,790 |
| 18603 | Berwick | 18,827 |
| 17820 | Catawissa | 5,499 |
| 17814 | Benton | 4,669 |
| 17824 | Elysburg | 3,949 |
| 17846 | Millville | 3,621 |
| 17859 | Orangeville | 2,701 |
| 17878 | Stillwater | 1,488 |
| 18631 | Mifflinville | 1,100 |
| 17888 | Wilburton | 446 |
| 17920 | Aristes | 246 |
| 17945 | Locustdale | 133 |
| 17858 | Numidia | 111 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 13 ZCTAs in Columbia County, Pennsylvania (US Census).