Timeline and Events

  1. Timeline and Events
  2. Cronología y eventos
  3. 时间线和活动

The following is an overview of the redistricting process, including public hearings and public workshops. If you need language or other accommodations, please send a request at least 72 hours prior to the meeting. Email an accommodation request.

February  2021 - Report to the Board of Supervisors

Report to Board of Supervisors - Redistricting Process and Workplan (PDF)

August 4, 2021 - Website Launch

August 10, 2021 at 9:00 AM -  Public Hearing 1

Presentation to the Board of supervisors, review current supervisorial maps. The process for accessing the redistricting website, using the online mapping program to submit maps and communities of interest for consideration, subscribing to receiving email updates, and for providing comments will be explained.
View Board Order (PDF)
View Presentation (PDF)
Watch Video of Public Hearing

August 12, 2021 - Census Data Released

The US Census Bureau will release the first local level results from the 2020 Census including: population change, race, ethnicity, the age 18 and over population, and housing occupancy status. This data is the basis for the California Redistricting data used to draw district boundaries. The California Redistricting data is anticipated in September.

September 2021

Receipt of California Redistricting data and release of mapping application.
Once the California Redistricting data is published, it will be available on the Census Bureau's Redistricting Data Datasets page.

Website application for public to propose Supervisorial District Boundaries launches. 

September 15, 2021 at 2:00 PM - Online Mapping Workshop #1

The County will host a technical workshop for the public to learn how the online mapping application works.
Watch the training

October 5, 2021 at 9:00 AM - Public Hearing 2
1025 Escobar Street, Martinez, CA

Presentation to update the Board of Supervisors on the redistricting process; obtain public input on community of interests; staff to provide over/under population; review the criteria for adopting redistricting maps; and receive direction from the Board of Supervisors.
View Public Notice (PDF)
View Agenda
View Board Order (PDF)
View Attachment A - Community Input Summary (PDF)
View Attachment B - Redistricting Public Outreach Communications Report (PDF)
View Attachment C - Presentation Slides (PDF)

Access to the meeting via Zoom
To indicate you wish to speak on an agenda item, please “raise your hand” in the Zoom app.
Board meetings are televised live on Comcast Cable 27, ATT/U-Verse Channel 99, and WAVE Channel 32, and can be seen live online at www.contracosta.ca.gov

October 12, 2021 - County releases Draft Map Concepts 

County releases 5 map proposals for consideration.  
View Draft Map Concepts (PDF)

October 13, 2021 at 4:00 PM - Online Mapping Workshop #2 - IN SPANISH
Talleres de Cartografía en Línea en Español

The County and Districtr will host a technical workshop for the public to learn how the online mapping application works. This workshop will be conducted in Spanish.
RSVP para la reunion del 13 de octubre
After registering, you will receive a confirmation email containing information about joining the meeting.

October 14, 2021 at 2:00 PM - Online Mapping Workshop #3

The County and Districtr will host a technical workshop for the public to learn how the online mapping application works.
RSVP for the October 14, 2021 Online Mapping Workshop
After registering, you will receive a confirmation email containing information about joining the meeting.

October 19, 2021 at 6:15 PM - Public Hearing 3
1025 Escobar Street, Martinez, CA

Presentation to the Board of Supervisors to include: update on public input on community of interests; staff to review over/under population; present publicly drawn maps received to date, review the criteria for adopting redistricting maps; present 5 conceptual drafts of supervisorial maps and receive direction from the Board of Supervisors.
View Public Notice (PDF)
View Board Order (PDF)
View Attachment A - Community Input Summary (PDF)
View Attachment B - Community Outreach Report (PDF)
View Attachment C - Draft Concept Maps (PDF)
View Attachment D - Presentation (PDF)

Public Hearing #3 Zoom Link

PERSONS WHO WISH TO ADDRESS THE BOARD DURING PUBLIC COMMENT OR WITH RESPECT TO AN ITEM THAT IS ON THE AGENDA MAY CALL IN DURING THE MEETING BY DIALING 888-251-2949 FOLLOWED BY THE ACCESS CODE 1672589#. To indicate you wish to speak on an agenda item, please push "#2" on your phone. Access via Zoom is also available via the following link: https://ems8.intellor.com/join/Byh2VZ7U85. To indicate you wish to speak on an agenda item, please “raise your hand” in the Zoom app.

October 23 - 28, 2021 - Community Redistricting Workshops

Workshops held in each region of the County to provide background on the redistricting process, present potential boundary changes (map alternatives), answer questions and receive input.  Depending on COVID 19 restrictions, these workshops may be in-person, or by Zoom, call-in, or some combination of those alternatives.
Workshop Schedule (PDF)

November 9, 2021 at 9:00 AM - Public Hearing 4
1025 Escobar Street, Martinez, CA

Presentation to the Board of Supervisors to include: report on regional workshops, provide update on additional public input received on Community of Interest suggestions, review over/under population for existing districts, present publicly drawn maps, present 3 - 6  conceptual drafts of supervisorial maps, and receive direction from the Board of Supervisors. 

November 23, 2021 at 9:00 AM  - Public Hearing 5 (additional hearings may be set if necessary)
1025 Escobar Street, Martinez, CA

Presentation to the Board of Supervisors to include: provide additional public input received on Community of Interest suggestions, review publicly drawn maps received, review the criteria for adopting redistricting maps, review proposed Final supervisorial district map, receive public input, and Board of Supervisors to consider selection of final map. 

Date TBD - Elections adjusts precinct lines 

Elections Office adjusts precinct lines to conform to new supervisorial districts.

December 15, 2021 - Statutory deadline to complete redistricting 

Per CA Elections Code section 21501(a)(2) the redistricting process must be completed by December 15, 2021. 

December 16, 2021 - Signature in-lieu-of-filing fees begin

The County Clerk will begin to accept signature in-lieu-of-filing fees for U.S. Congressional, State Legislative, and County candidates.

June 7, 2022 - California Direct Primary

California Direct Primary



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    Contact Information in Chinese (Simplified) (PDF)