Pennsylvania · FIPS 42045 · County seat: Media
Delaware County, PA GIS & Parcel Viewer
Looking for lot lines or a parcel number in Delaware County, PA? The quickest route is the Delaware County parcel map, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Delaware County parcel map ↗
Opens delcorealestate.co.delaware.pa.us in a new tab. We link out and never embed or copy parcel data.
Delaware County at a glance
| Official map | Delaware County parcel map |
|---|---|
| Type | County-run map |
| Website | delcorealestate.co.delaware.pa.us |
| Access | Free, no login (checked Oct 2026) |
| County seat | Media |
| Population | 576,720 (2023 Census Bureau estimate) |
| Land area | 184 sq mi |
| FIPS code | 42045 |
About the official source
It is a county-level map: Delaware County or the company it hires keeps the parcel layer up to date. As of our October 2026 test, anyone could open it without signing in or paying.
How to use the Delaware County viewer
- 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.
The county in brief
Delaware County had an estimated 576,720 residents in 2023, according to the Census Bureau. With about 184 square miles of land, that works out to roughly 3,134 people per square mile. That makes it number 5 out of 67 Pennsylvania counties by population. Its county seat is Media.
Neighboring counties
Parcels close to the edge of Delaware County can fall in the next county over. Neighboring counties:
Our longer guides
A note on accuracy
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.