2021 Redistricting Process

Thank you for your interest in the County of Santa Clara's 2021 redistricting process!


New Supervisorial Districts Effective January 2022

Individuals who would like to look up their address to see which districts they reside in can check the Registrar of Voters District Lookup. Additional redistricting maps based on the 2020 Census data is also available on the Registrar of Voters Redistricting webpage.


The County also provides the supervisorial district maps from 2011 and 2021 as maps and a data set through the County's open data portal. The Department of Planning and Development also host interactive maps with the supervisorial districts on the GIS Mapping Portal.


Below are links to the new supervisorial map with different data points:


December 7, 2021

The County of Santa Clara Board of Supervisors voted to approve new supervisorial district boundaries at its meeting Tuesday. The new supervisorial district boundaries balance population amongst districts based on data from the 2020 US Census. A vote on the final resolution for adoption to implement the new maps will be Tuesday, Dec. 14.  The new supervisorial district boundaries will take effect on January 13, 2022, thirty-days after adoption by the Board of Supervisors. County staff will update county resources and information post-adoption to reflect the new boundaries.

December 7, 2021 Meeting Agenda

Draft Plan 90195

Draft Plan 90195 Analysis.pdf

Boundaries of the 5 Districts - Draft Plan 90195



The population of each district is different by 4.1% across all boundaries (standard deviation), maintains a majority-minority Asian and Pacific Islander voter representation in District 3 (50.6%) and has a Latino influence in District 2 (49.5%). There are several changes from previous district boundaries that will be instituted on Jan. 13. The most notable changes are:

  • The City of Sunnyvale will be entirely located in District 3,
    • previously it was split into Districts 3 and 5;  and
  • The Town of Los Gatos, the City of Monte Sereno, the Lexington Hills area, and the Almaden Valley neighborhood in the City of San José will move from District 1 to District 5; and
  • The community of Evergreen in the City of San José will move from District 3 to District 1.

Highlights of the plan include: 

  • Total Plan Deviation: 4.14%
  • API CVAP: District 3- 50.6%
  • Latino Influence: District 2- 49.5%
  • 1 City/CDP Splits
    • City of San José: All 5 Districts
    • Unincorporated: All 5 Districts
  • 3 COI/ Neighborhood splits or shifts

To view where your neighborhood is located in the new supervisorial districts, please visit: https://redistrictingpartners.com/wp-content/uploads/2021/12/Santa-Clara-County-Draft-Plan-90195-1.html

County of Santa Clara's 2021 Redistricting Process

Every 10 years, the County redraws supervisorial district boundaries, taking into account population changes reflected in the decennial Census. The County has appointed the 2021 Advisory Redistricting Commission for the 6-month redistricting effort to redraw the County’s five supervisorial district boundaries. The Board of Supervisors established the formation of a 15-member commission to hold virtual public hearings and mapping sessions, collect community input, and recommend to the Board updated placement of the district boundaries. 

The 2021 Advisory Redistricting Commission received over 200 pieces of community of interest testimony, draft maps, and public comments. Draft maps submitted through the public portal can be reviewed at  https://districtr.org/event/Santa_Clara_CountyThe Commission presented their recommendations to the Board of Supervisors on November 2, 2021 regarding the placement of the supervisorial district boundaries and serve until the completion of the 2021 supervisorial redistricting process. 

This website will be updated as the redistricting process moves forward, so please check back for more information. If you would like to receive updates and additional information, please email [email protected].

To learn more about redistricting, please download information sheets about the process in multiple languages:

Multilingual Information Sheets
Language Flier
Tiếng Việ

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