Background

GIS Data for Montgomery County

The Montgomery County GIS website offers a comprehensive collection of “standard GIS datasets” available for browsing and download at no cost via the County GIS Open Data portal, with some specialized “non-standard GIS dataset” requests subject to a fee. Visitors can explore a variety of geographic data including property, planimetric, and departmental operations data with geographic processing at dataMontgomery. The site also provides direct links to key regional and federal GIS resources such as the Maryland National Capital Park and Planning Commission (M-NCPPC) GIS Data Downloads, Maryland state platforms like “MD iMap” and “Property View,” and extensive federal geospatial datasets from agencies including the EPA, NASA, USGS, and the Chesapeake Bay Program. Users are encouraged to review the County’s Terms of Use to understand data usage policies, making this site an essential portal for accessing authoritative and up-to-date geographic information for Montgomery County and the surrounding Washington DC metropolitan area.