Background Color:
Background Pattern:
Marin Home Page Image

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

The boxes below describe MarinMap's most popular applications (trending now !)

Map Viewer
View map layers such as property boundaries, hazards, jurisdictions and natural features.  Search by address or Assessor Parcel Number.  Print maps.


View Map

FEMA Flood Map
View FEMA Flood Hazard Zones. Learn about Letters of Map Change (LOMC) to challenge flood insurance requirements.


View map

GIS Data Download

Download GIS data in shape file format; data are in California State Plane coordinates, NAD83 HARN, US Survey Feet.

Go to page

What's New - Announcements
Chrome web browser will not support SIlverLight plug-in - Wednesday, December 16, 2015
Microsoft Silverlight will not work in recent versions of Google Chrome v42 . Therefore the Map viewer with extended toolkit will not work on Chrome.
Note This issue does not occur in Microsoft Internet Explorer, Mozilla Firefox, or Apple Safari. These applications still support Silverlight content.
 In September 2015 Google completely dropped support for Silverlight. 
Video tutorials - Wednesday, December 09, 2015
Video tutorials show how to use our map applications.  
New Web site - Tuesday, December 01, 2015
Review the new design for MarinMap web site. 
Additional Services