County of Marin - News Releases - Redistricting Update

For Immediate Release
December 09, 2021

Supervisors Set to Adopt New District Map

Adjustments made to reflect population balance; changes mostly in San Rafael

San Rafael, CA – The once-a-decade responsibility to adjust Marin County’s supervisorial district boundaries to reflect population changes is nearly completed. On December 14, the Board of Supervisors plans to take a formal vote to adopt an ordinance implementing the final map it  unanimously supported December 7.  

The new map, called Final NDC Canal Map, mostly influences downtown San Rafael and will go into effect immediately if the Board adopts the ordinance Tuesday. By law, the Board needs to adopt the ordinance by December 15 to ensure the June 2022 primary election reflects any new boundaries. Once Board approval is in hand, Registrar of Voters Lynda Roberts will receive the adopted revised map and work with technical specialists to ensure all election precincts are mapped properly.

The Board unanimously supported the NDC Canal Map A December 7 and directed a few minor technical changes. It transfers San Rafael households in the Lincoln Avenue corridor of District 1, and sections of the Bret Harte and California Park neighborhoods of District 2, into District 4, keeping most other boundaries from the 2011 redistricting process. The changes acknowledge a clear community of interest in the Canal Area, particularly those living in multifamily housing complexes, with lower annual incomes, and relatively higher levels of immigrant population.  

The Board deferred adopting the implementing ordinance December 7 to allow for some small technical changes to be incorporated, including a mapping correction in the southern Novato area of District 5 and a technical change in the Kent Woodlands area of District 2.

The Final NDC Canal Map includes a total 2.94% deviation in population between districts and in San Rafael aligns the supervisorial boundaries with a district map adopted by the City of San Rafael in 2018.

Learn more about the local redistricting process on or check the California Secretary of State’s webpage on redistricting.


Anna Guiles
Strategic Projects Manager
County Administrator's Office

3501 Civic Center Drive
Suite 325
San Rafael, CA 94903
(415) 473-6361
Email: Anna Guiles
County Administrator website