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MarinMap is a group of local governments, special districts and other public agencies that have joined together to create a Geographic Information System (GIS). MarinMap agencies work together to improve public service and each other's business processes, as well as provide a forum for group decision making. Learn more...
What you can do:

  • Interact with GIS maps
  • Download GIS Data
  • Watch videos to learn GIS applications
  • Additional Services
    What's New - Announcements
    MMWD Easements - Those purple dashes - Thursday, May 23, 2019

    The Marin Municipal Water District Easements are now  visible when you zoom in .  Building and planning permits that intersect these lines should  contact the Marin Municipal Water District (MMWD)  engineering department


    2018 Aerial Imagery is available - Thursday, March 7, 2019

    Information On the 2018 Imagery is available at  


    HTML5 viewers Promoted So Long Silverlight ... - Friday, August 17, 2018

    MarinMap and the Marin County GIS are going to stop support for the Silverlight viewers hosted on the GIS WebSites and
    On Thursday The links on the application menu and on the GIS application Page will be changed to point to the HTML5 equivalent of the Silverlight apps . The  Silverlight apps are still available on this Application List  Page


    Video tutorials - Friday, June 9, 2017
    Video tutorials show how to use our map applications.