Marin County’s supervisorial district mapping process was completed on December 14, 2021 with the adoption of an ordinance by the Board of Supervisors. 

Please send any questions or mapping suggestions you wish to make to or fill out the form below. You may also contact the County Administrator’s Office by phone at (415) 473-6358.

A community of interest is defined by the State as “a population that shares common social or economic interest that should be included within a single district for purposes of its effective and fair representation.” This could include lifestyle, economy, demography, geography, political subdivisions (such as school districts or planning areas), or place-based issues/needs. If you are interested in providing comments about your community of interest, please let us know the following:

  • Where your community is located
  • What your shared interests are/what brings you together
  • What is important to your community
  • Anything else you think might be important for consideration