Founded in 1813, Columbia County is one of 67 counties in the state of Pennsylvania. Historically, Columbia County was formed from parts of Northumberland and Luzerne Counties. The city of Bloomsburg is the county seat. With FIPS code of 37, Columbia County has a population of 64,872 and area of 490 square miles (1,269 km2).
List of all cities in Columbia County, PA alphabetically
| City/Town | Postal Code | Area Code |
| Almedia, PA | 17815 | 570 |
| Aristes, PA | 17920 | 570 |
| Ashbury, PA | 17859 | 570 |
| Bendertown, PA | 17859 | 570 |
| Benton, PA | 17814 | 570 |
| Berwick, PA | 18603 | 570 |
| Bloomsburg, PA | 17815 | 570 |
| 17839 | 570 | |
| Buckhorn, PA | 17815 | 570 |
| Catawissa, PA | 17820 | 570 |
| Central, PA | 17814 | 570 |
| Coles Creek, PA | 17814 | 570 |
| Derrs, PA | 17814 | 570 |
| Elk Grove, PA | 17814 | 570 |
| Espy, PA | 17815 | 570 |
| Eyers Grove, PA | 17846 | 570 |
| Fairmount Spr, PA | 17814 | 570 |
| Fernville, PA | 17815 | 570 |
| Iola, PA | 17846 | 570 |
| Jamison City, PA | 17814 | 570 |
| Jerseytown, PA | 17815 | 570 |
| Kulp, PA | 17820 | 570 |
| Laubachs, PA | 17814 | 570 |
| Lightstreet, PA | 17839 | 570 |
| Lime Ridge, PA | 17815 | 570 |
| Locust, PA | 17820 | 570 |
| Mainville, PA | 17815 | 570 |
| Mayberry, PA | 17820 | 570 |
| Midvalley, PA | 17888 | 570 |
| Mifflinville, PA | 18631 | 570 |
| Mill Grove, PA | 17820 | 570 |
| Millville, PA | 17846 | 570 |
| Mordansville, PA | 17815 | 570 |
| Numidia, PA | 17858 | 570 |
| Orange, PA | 17859 | 570 |
| Orangeville, PA | 17859 | 570 |
| Parrs Mill, PA | 17820 | 570 |
| Pealertown, PA | 17859 | 570 |
| Pine Summit, PA | 17846 | 570 |
| Queen City, PA | 17820 | 570 |
| Raven Creek, PA | 17814 | 570 |
| Red Rock, PA | 17814 | 570 |
| Roaring Creek, PA | 17820 | 570 |
| Rohrsburg, PA | 17859 | 570 |
| Rupert, PA | 17815 | 570 |
| Sereno, PA | 17846 | 570 |
| Shumans, PA | 17815 | 570 |
| Stillwater, PA | 17878 | 570 |
| Talmar, PA | 17814 | 570 |
| Waller, PA | 17814 | 570 |
| Wilburton, PA | 17888 | 570 |