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Geographic Information Systems (GIS)

Using Geographic Information Systems (GIS), our team in the Information Technology & Innovation Division maintains a variety of geographic data – from building footprints to environmental features to park boundaries – to help staff at the Planning Department and Department of Parks prepare master plans, assess park needs, review development proposals and analyze county resources. By maintaining accurate data and developing standardized tools and visual designs, our staff produces detailed geographic data in 2D and 3D.

Free Map Library

free map library A wide assortment of over 30 maps depicting various general areas (planning, council, zip codes, etc.) and special interest areas (rustic roads, landmarks, etc.). These maps are available in two digital formats (JPG and PDF) and range from letter size (8.5 x 11) to E-size drawings (34 x 40) for you to print at home or in your office. Click here to visit Free Map Library

Data Downloads

data downloads The GIS Team at Montgomery County’s Planning Department (MNCPPC) is pleased to announce the end of their GIS Data Sale Policy. Click here for our new web site offering the Montgomery County GIS basemap data (property and plan/topo) available free for download. We will be offering additional layers to this web page beyond the traditional offerings, and we will also make available free downloads in our native GIS format. We would like to thank all our data users for their understanding and support over the years. Rest assured that if you encounter any difficulties with our new website or any related issues, please feel free to contact our data base manager, Chris McGovern at (301-650-5634).

Interactive Maps

Interactive MapsChoose from a variety of interactive map viewers designed to make the viewing of specific topical areas streamlined and easy. These maps allow users to zoom in to areas, identify further information on specific features and in some cases provide feedback.

New: check out our new interactive map site, Montgomery Maps.


The public can benefit from our detailed data and information-rich graphics as well, available in a range of formats.

The GIS Team

GIS Team maintains geographic data and supports the Department of Parks and Planning Department with mapping and spatial analysis. The GIS team is part of the Information Technology & Innovation Division of the Maryland-National Capital Park and Planning Commission – Montgomery County.  Coordinating with Montgomery County government agencies, the GIS team provides a full suite of geographic data and resources such as:

  • property boundaries
  • building footprints
  • road information
  • addresses
  • terrain models
  • environmental features
  • web mapping development and support

See GIS Team Projects