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County offices are closed on Monday, May 30, for Memorial Day. 

Maps and Publications

Baltimore County provides access to Geographic Information System (GIS) data and maps through the GIS Open Data Portal.

Standard Map Library

View the following standard planning maps.

Interactive Online Maps

The My Neighborhood map depicts zoning, historic districts, bikeways, commercial revitalization areas and land development for Baltimore County. View more detailed maps below.

Publications and Research

Learn more about the following topics.

A new website for Baltimore County

We're working to provide you with a better experience, and want your feedback. Learn more about our project and give your feedback.