Westmoreland County, Pennsylvania
Westmoreland County is a county in Pennsylvania. Its county FIPS code is 42129. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 42129
- Representative coordinates
- 40.311068, -79.466688
- County type
- County
- County seat or government
- Greensburg
- Resident population, July 2025
- 349,324
- Land area
- 2,661.764 km²
- Water area
- 21.288 km²
- State
- Pennsylvania
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Westmoreland 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
15012 · 15062 · 15068 · 15072 · 15083 · 15085 · 15087 · 15089 · 15131 · 15137 · 15146 · 15448 · 15479 · 15501 · 15531 · 15601 · 15610 · 15611 · 15612 · 15613 · 15615 · 15616 · 15617 · 15618 · 15619 · 15620 · 15622 · 15623 · 15624 · 15625 · 15626 · 15627 · 15628 · 15629 · 15632 · 15633 · 15634 · 15635 · 15636 · 15637 · 15638 · 15639 · 15640 · 15641 · 15642 · 15644 · 15646 · 15647 · 15650 · 15655 · 15656 · 15658 · 15660 · 15661 · 15662 · 15663 · 15665 · 15666 · 15668 · 15670 · 15671 · 15672 · 15674 · 15675 · 15676 · 15677 · 15678 · 15679 · 15680 · 15681 · 15683 · 15684 · 15687 · 15688 · 15689 · 15690 · 15691 · 15692 · 15693 · 15695 · 15696 · 15697 · 15698 · 15717 · 15779 · 15923 · 15944 · 15954 · 16229
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Westmoreland County government website ↗ is the next stop for county offices, tax, voting, jury and records information. 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.
- Adamsburg borough, PA
- Arnold city, PA
- Arona borough, PA
- Avonmore borough, PA
- Bolivar borough, PA
- Bradenville CDP, PA
- Calumet CDP, PA
- Collinsburg CDP, PA
- Crabtree CDP, PA
- Delmont borough, PA
- Derry borough, PA
- Donegal borough, PA
- East Vandergrift borough, PA
- Export borough, PA
- Fellsburg CDP, PA
- Grapeville CDP, PA
- Greensburg city, PA
- Harrison City CDP, PA
- Herminie CDP, PA
- Hostetter CDP, PA
- Hunker borough, PA
- Hyde Park borough, PA
- Irwin borough, PA
- Jeannette city, PA
- Latrobe borough, PA
- Laurel Mountain borough, PA
- Lawson Heights CDP, PA
- Level Green CDP, PA
- Ligonier borough, PA
- Lower Burrell city, PA
Browse all cities, towns and communities for Westmoreland County
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
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Find the county at your current point, check its ZIP area, or find its physical time zone.