County GIS · Parcel viewers · October 18, 2026

Pennsylvania County GIS Websites: Parcel Viewers by County

Which parcel map software each Pennsylvania county uses (65 of 67 verified), how to search the common viewers, and a link to every official map.

Looking for Pennsylvania county GIS websites? Pennsylvania has 67 counties, and their official parcel maps do not all run on the same software. Knowing which viewer a county uses tells you what the search box expects and where the parcel report is.

If you look up land in more than one Pennsylvania county, you will notice the parcel maps don't match. That is because each office chooses its own software. Below, all 67 Pennsylvania entries in our directory are listed with the viewer each one uses, plus tips for the most common types.

Pennsylvania at a glance

• Entries in the directory: 67
• With a verified public parcel viewer: 65
• Still waiting on a verified link: 2 (Armstrong County, Elk County)
• ArcGIS Web AppBuilder: 35
• county web map: 14
• ArcGIS Experience Builder: 8
• Vision Government Solutions: 4
• ArcGIS Map Viewer: 2
• ArcGIS: 1
• CivQuest: 1

13 of these entries point to a statewide viewer rather than a county-run site (PASDA Pennsylvania Tax Parcels viewer). A statewide map is handy for crossing county lines, but the local office is still where deeds and tax records are kept.

The most populous counties

The busiest offices are worth knowing first, since most searches land there.

How to search the most common viewers in Pennsylvania

ArcGIS Web AppBuilder (35 entries, e.g. Adams County, Bedford County, Berks County)

1. Open the official map link from the county's page. The viewer is built with ArcGIS Web AppBuilder; if a disclaimer pops up, accept it to continue.
2. Use the search widget, usually in the upper left, to find a street address or parcel ID.
3. Click a parcel to open its info window.
4. The widget bar holds extras such as the layer list, basemap switcher, measure and print tools.

county web map (14 entries, e.g. Chester County, Columbia County, Delaware County)

1. Open the county's own web map.
2. Search for the property or pan and zoom to it.
3. Click the lot to bring up what the county publishes about it.
4. Look for print or measure tools if you need a quick map or rough size.

ArcGIS Experience Builder (8 entries, e.g. Allegheny County, Clarion County, Jefferson County)

1. Open the official map link from the county's page; an ArcGIS Experience Builder app opens in a new tab. Accept any splash or disclaimer screen.
2. Search by address or parcel ID, or pan to the area.
3. Select a parcel to view the information the publisher makes available.
4. Explore the app's panels for layers, legends or printing.

Every Pennsylvania entry and its viewer

Before you rely on what you find

Online parcel lines are drawn for tax mapping, not surveys, so they can sit a few feet off the real boundary. For anything legal, such as a fence, a sale or a dispute, use the recorded deed and a licensed surveyor. To check flood zones, soils or wetlands for a spot you found, open it on the Platbookmapper Land Map, which pulls FEMA, USDA and U.S. Fish & Wildlife layers.

See also: Pennsylvania on Platbookmapper.

Related guides

• Pennsylvania plat maps
• Pennsylvania landowner maps for hunting

Sources

• Platbookmapper county GIS directory (the live data file behind our county pages, pulled October 18, 2026). Viewer types are read from each official map's web address.
• U.S. Census Bureau, Population Estimates Program, county totals, Vintage 2023 (July 1, 2023 estimates)
• County seats: Wikidata (county seat property), cross-checked against Census place names.