MarinMap maintains a “document of record” file of street addresses for all jurisdictions in Marin County.  Addresses are shown as points on maps in GIS applications.  These addresses are used for a number of purposes, including mailings to businesses and residences, 911 computer aided dispatch for Sheriff, police and fire departments, automated phone calls during emergencies and “run books” for fire departments.  MarinMap agencies make every effort to keep addresses current and accurate. 

If you see an error or have a question about an address in your area, please contact the staff listed for your jurisdiction. 

Note that the County Assessor may or may not use the same address for a given property.  The Assessor is required to record the address listed on the title or deed to a property even if that address is incorrect. 

ALSO: Note that a parcel might not have an address if it is vacant.  Jurisdictions might not assign addresses until there is an approved development.