Pennsylvania · FIPS 42065 · County seat: Brookville
Jefferson County, PA GIS & Parcel Viewer
Jefferson County, Pennsylvania parcel data lives on Jefferson County Parcel Look-up. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Jefferson County parcel map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Jefferson County Parcel Look-up |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Brookville |
| Population | 43,612 (2023 Census Bureau estimate) |
| Land area | 652 sq mi |
| FIPS code | 42065 |
About the official source
Jefferson County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. Our October 2026 check found the map open to the public, with no account or payment needed.
How to use the Jefferson County viewer
- Open the link. This viewer is an ArcGIS Experience Builder app, so its layout is custom to the publisher.
- Look for a search box or search widget and type in a street address or parcel ID.
- Click a parcel to see its details in a pop-up or side panel.
- Check the toolbar for a layer list or basemap switcher if you want aerials or other layers.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Jefferson County by the numbers
The U.S. Census Bureau estimated Jefferson County's population at 43,612 in 2023, spread over about 652 square miles of land, or roughly 67 people per square mile. Among Pennsylvania's 67 counties, it is the 48th largest by population. Its county seat is Brookville.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Jefferson County:
- Armstrong County (state list)
- Clarion County
- Clearfield County
- Elk County (state list)
- Forest County
- Indiana County
Maps vs. surveys
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.