Pennsylvania · FIPS 42019 · County seat: Butler
Butler County, PA GIS & Parcel Viewer
Butler County, Pennsylvania parcel data lives on PASDA Pennsylvania Tax Parcels viewer. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Butler County statewide map ↗
Opens pasda.maps.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | PASDA Pennsylvania Tax Parcels viewer |
|---|---|
| Type | Statewide map (covers all of Pennsylvania) |
| Website | pasda.maps.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Butler |
| Population | 198,413 (2023 Census Bureau estimate) |
| Land area | 789 sq mi |
| FIPS code | 42019 |
About the official source
Butler County doesn't have its own viewer in our directory, so we point you to a statewide map: PASDA Pennsylvania Tax Parcels viewer. Zoom in on Butler County to see its parcels. A statewide layer can trail the county's own books by weeks or months, so treat it as a fast first look rather than the final word. As of our October 2026 test, anyone could open it without signing in or paying.
Searching for a parcel, step by step
- Open PASDA Pennsylvania Tax Parcels viewer in a new tab and zoom to Butler County (around Butler).
- Type a street address into the search box, or click directly on a parcel.
- Review the parcel attributes; field names vary by state.
- Confirm anything important with the county assessor, since the statewide layer is a compiled copy.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Butler County by the numbers
The U.S. Census Bureau estimated Butler County's population at 198,413 in 2023, spread over about 789 square miles of land, or roughly 251 people per square mile. Among Pennsylvania's 67 counties, it is the 19th largest by population. The county seat is Butler.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Butler County:
- Allegheny County
- Armstrong County (state list)
- Beaver County
- Clarion County
- Lawrence County
- Mercer County (state list)
- Venango County
- Westmoreland County (state list)
Maps vs. surveys
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.