Pennsylvania · FIPS 42101 · County seat: Philadelphia
Philadelphia County, PA GIS & Parcel Viewer
Here is the direct link to the county parcel map covering Philadelphia County, PA: the Philadelphia County parcel map. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Philadelphia County parcel map ↗
Opens atlas.phila.gov in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Philadelphia County parcel map |
|---|---|
| Type | County-run map |
| Website | atlas.phila.gov |
| Access | Free, no login (checked Oct 2026) |
| County seat | Philadelphia |
| Population | 1,550,542 (2023 Census Bureau estimate) |
| Land area | 134 sq mi |
| FIPS code | 42101 |
Who runs this map
It is a county-level map: Philadelphia County or the company it hires keeps the parcel layer up to date. When we tested the link in October 2026 it opened with no login and no fee.
Finding a property on this map
- Open the official link in a new tab.
- Accept any disclaimer, then look for a search box that takes street addresses, owners or parcel IDs.
- Zoom in and click a parcel to see its details.
- Use the map's layer controls to add aerials or other layers if they're offered.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Philadelphia County by the numbers
Philadelphia County had an estimated 1,550,542 residents in 2023, according to the Census Bureau. With about 134 square miles of land, that works out to roughly 11,571 people per square mile. That makes it the most populous of Pennsylvania's 67 counties. The county seat is Philadelphia.
Nearby parcel maps
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Philadelphia County:
- Bucks County
- Delaware County
- Montgomery County
- Burlington County, NJ
- Camden County, NJ
- Gloucester County, NJ
Before you rely on the lines
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.