Columbia County, Pennsylvania
Columbia County is a county in Pennsylvania. Its county FIPS code is 42037. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 42037
- Representative coordinates
- 41.045517, -76.404260
- County type
- County
- County seat or government
- Bloomsburg
- Resident population, July 2025
- 66,193
- Land area
- 1,251.636 km²
- Water area
- 18.574 km²
- State
- Pennsylvania
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Columbia County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
17756 · 17774 · 17814 · 17815 · 17820 · 17821 · 17824 · 17846 · 17858 · 17859 · 17878 · 17888 · 17920 · 17921 · 17945 · 17985 · 18603 · 18631 · 18635 · 18655
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Use the US government local-office directory ↗ to find the office responsible for your address. A county website has not been confidently matched here. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Almedia CDP, PA
- Aristes CDP, PA
- Ashland borough, PA
- Benton borough, PA
- Berwick borough, PA
- Bloomsburg town, PA
- Briar Creek borough, PA
- Buckhorn CDP, PA
- Catawissa borough, PA
- Centralia borough, PA
- Elk Grove CDP, PA
- Espy CDP, PA
- Eyers Grove CDP, PA
- Fernville CDP, PA
- Foundryville CDP, PA
- Iola CDP, PA
- Jamison City CDP, PA
- Jerseytown CDP, PA
- Jonestown CDP, PA
- Lightstreet CDP, PA
- Lime Ridge CDP, PA
- Locustdale CDP, PA
- Mainville CDP, PA
- Mifflinville CDP, PA
- Millville borough, PA
- Numidia CDP, PA
- Orangeville borough, PA
- Rohrsburg CDP, PA
- Rupert CDP, PA
- Slabtown CDP, PA
Browse all cities, towns and communities for Columbia County
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county at your current point, check its ZIP area, or find its physical time zone.