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Francis Scott Key Bridge Incident Updates
Watch the Recording of County Executive John A. Olszewski Jr. delivering the Proposed FY25 Budget Message

Geographic Information Systems (GIS)

Baltimore County operates an enterprise geographic information system (GIS) that is available to all County agencies and departments. The County’s GIS is managed by the Office of Information Technology’s Business Applications unit.

My Neighborhood Interactive Mapping Application

Use the My Neighborhood interactive mapping application to select, view and print predefined maps and reports about Baltimore County, such as police precincts, enterprise zones or census information. My Neighborhood does not require specialized mapping software.

Visit My Neighborhood


Open Data Portal

Use Baltimore County's  GIS to find geospatial information that includes features, such as Planimetrics, topography, parcels, roads, buildings and bodies of water.

Visit Open Data Portal


Data Download

Baltimore County provides Download Data, such as topography, contours, or parcels that can be used to create custom maps and reports. You can view, manipulate and analyze the data in a format of your choosing. Predefined maps are also available. Data Download requires specialized mapping software and is recommended for use by those with advanced-level mapping experience.

Downloadable Data


Geographic Information Systems (GIS)

Historic Courthouse
400 Washington Avenue
Towson, Maryland 21204


Monday through Friday
8:30 a.m. to 4:30 p.m.



Michael Fried