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Maps and geographic information systems (GIS)

Explore maps and location-based data about zoning, land records, supervisor districts, and more.

The Marin County Geographic Information Systems Open Data program provides location-based local government data.

Here you’ll find:

  • Schools and libraries
  • Environment and natural hazards
  • Public safety
  • Transportation and trails
  • Boundaries and districts
  • Parcels and addresses
  • Aerial and elevation data
  • Vegetation and land cover data

Maps are for informational purposes only and are not survey accurate. You'll need to disable popup blockers to use these applications.


Page updated February 8, 2024