Maryland · FIPS 24005 · County seat: Towson
Baltimore County, MD GIS & Parcel Viewer
Baltimore County, Maryland parcel data lives on Geographic Information Systems (GIS) for Baltimore County. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Baltimore County parcel map ↗
Opens baltimorecountymd.gov in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Geographic Information Systems (GIS) for Baltimore County |
|---|---|
| Type | County-run map |
| Website | baltimorecountymd.gov |
| Access | Free, no login (checked Oct 2026) |
| County seat | Towson |
| Population | 844,703 (2023 Census Bureau estimate) |
| Land area | 598 sq mi |
| FIPS code | 24005 |
About the official source
Baltimore County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. As of our October 2026 test, anyone could open it without signing in or paying.
Searching for a parcel, step by step
- Press the button above to open the county's own web map.
- Search for the property or pan and zoom to it.
- Click the lot to bring up what the county publishes about it.
- Look for print or measure tools if you need a quick map or rough size.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
The county in brief
The U.S. Census Bureau estimated Baltimore County's population at 844,703 in 2023, spread over about 598 square miles of land, or roughly 1,413 people per square mile. Among Maryland's 24 counties, it is the 3rd largest by population. Another 83 square miles of water fall within its lines, according to Census mapping. The county seat is Towson.
Nearby parcel maps
Parcels close to the edge of Baltimore County can fall in the next county over. Neighboring counties:
- Anne Arundel County
- Baltimore City
- Carroll County
- Harford County
- Howard County
- Kent County
- York County, PA
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.