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Montgomery County GIS Data

Montgomery County Government makes standard GIS datasets publicly available at no cost.  However, in some cases, the County may charge a fee ($75 per hour) to cover the cost to produce a non-standard GIS dataset.

Stand‚Äčard GIS datasets are available at the County GIS Open Data site for browsing and download.

Please also check dataMontgomery for departmental operations data that have been geo-processed (X, Y assigned or service area assigned)

To obtain a quote for a non-standard dataset, please complete the following Request for Quotation.  Data (in 'shapefile' format) will be provided after full payment (if applicable) has been received.

Please review the County's Terms of Use before using data provided by the County.

M-NCPPC GIS Data
To obtain base map data layers such as property or planimetric data from the Maryland National Capital Park and Planning Commission (M-NCPPC), please visit M-NCPPC GIS Data Downloads.

Other Data Sources 
Montgomery County, Maryland

Washington DC Metropolitan Area 

Federal Government

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