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Upcoming Events
July 26, 2011: Board of Supervisors Approves Redistricting Map Proposal
The Board of Supervisors approved Map Proposal 17 D Amended on a 3-2 vote as the proposed new supervisorial district boundaires. On Tuesday, August 9, 2011 at 10:00 am the Board of Supervisors will conduct a public hearing to consider adoption of an ordinance establishing the approved map as the new supervisorial district boundaries. The following provides map and data for the approved redistricting proposal.

Map Proposal 17 D Amended
Map Proposal 17 D Amended - Community Population Summary Table
Map Proposal 17 D Amended - Demographic Data Map


July 26, 2011: Continuation of Board of Supervisors Public Hearing on Map Proposals.  
The Board of Supervisors will continue to Public Hearing to Consider Proposal to adjust the boundaries of county supervisorial districts based on the 2010 Census at 1:00 pm on July 26, 2011.

Board Order
Exhibit 1: Map Proposal 15
Exhibit 1: Map Proposal 15 - Community Population Summary Table
Exhibit 1: Map Proposal 15 Demographic Data Map
Exhibit 2: Map Proposal 16
Exhibit 2: Map Proposal 16 - Community Population Summary Table
Exhibit 2: Map Proposal 16 Demographic Data Map
Exhibit 3: Map Proposal 17
Exhibit 3: Map Proposal 17 - Community Population Summary Table
Exhibit 3: Map Proposal 17 Demographic Data Map
Exhibit 4: Map Proposal 17D
Exhibit 4: Map Proposal 17D - Community Population Summary Table
Exhibit 4: Map Proposal 17D Demographic Data Map
Exhibit 5: Map Proposal 17D Amended
Exhibit 5: Map Proposal 17D Amended - Community Population Summary Table 
Exhibit 5: Map Proposal 17D Amended Demographic Data Map (revised)
Exhibit 6: City of Brentwood Letter 

July 12, 2011: Continuation of Board of Supervisors Public Hearing on Map Proposals.  
The Board of Supervisors will continue to Public Hearing to Consider Proposal to adjust the boundaries of county supervisorial districts based on the 2010 Census at 11:15 am on July 12, 2011.

Agenda
Board Order
Exhibt 1
Map Proposal 15
Map Proposal 15 - Community Population Summary
Map Proposal 15 - Demographic Data Map
Map Proposal 16
Map Proposal 16 - Community Population Summary
Map Proposal 16 - Demographic Data Map
Map Proposal 17
Map Proposal 17 - Community Population Summary
Map Proposal 17 - Demographic Data Map
Map Proposal Submitted at Board Hearing
Map Proposal 17 D
Map Proposal 17 D - Community Population Summary
Map Proposal 17 D - Demographic Data Map


Timeline
The process outlined below was developed to ensure compliance with the State law while providing an open and transparent public process. The timeline is preliminary and subject to change.

February 8, 2011
Board of Supervisors adopted the Redistricting Work Program

March 8, 2011
US Census Bureau released the 2010 Redistricting Data
(P.L. 94-171 Summary File).
Census Data can be viewed online using American FactFinder
California State Department of Finance Census 2010 Summary Files

March 24, 2010
2010 Census Population estimates by 2001 Supervisorial Districts published.

County publishes 2010 Census Data on CCMAP, the County's online mapping tool.

March - April, 2011
Department of Conservation and Development staff will review new geography and data. Staff will prepare draft map alternatives based on the population data. It will require a minimum of 5-6 weeks to complete this process.

May 3, 2011
Provide the Board of Supervisors with an update to review and confirm draft map alternatives and confrim the schedule for public workshops/meetings.

Board Order

2001 Supervisorial Districts Initial Analysis

Draft Boundary Concept 1

Draft Boundary Concept 2

Draft Boundary Concept 3

Draft Boundary Concept 4

Copy of Presentation (pdf)

Video of Meeting

May 10, 2011
Board of Supervisors meeting: Follow-up to the Board of Supervisors to confirm draft map alternatives and confrim the schedule for public workshops/meetings.


Mid to late May, 2011
Staff conducted Public Workshops in each Supervisorial District to review redistricting process, present map alternatives, and provide opportunity for public comments. Please note: A new workshop has been added in Lafayette on Wednesday, June 1st.  

June 28th, 2011: Board of Supervisors Public Hearing
The Board of Supervisors will hold a public hearing on Tuesday, June 28th at 1 pm
to consider a report of Redistricting Map Proposals for County Supervisorial Districts based on 2010 Census data and public input received to date, and to consider approving a Redistricting Map proposal as the basis for an Ordinance to establish the decennial redistricting plan which adjust the supervisorial district boundaries for Contra Costa County.

Redistricting Board Order
Exhibit 1: Seven Original Concept Maps Used in Public Workshops
Exhibit 2: Board Member Redistricting Map Proposals
Exhibit 3: Public Comments and Proposed Maps 

Video of the June 28th Public Hearing

Note: The Exhibits are all very large documents and may take awhile to download. The maps are all provided on our Maps and Data page in an easier to download format. The Board Order contains a summary of the Public Comments received and a hard copy is avaible through the Clerk of the Board or the Department of Conservation and Development at (925) 335-1254.



Mid-July, 2011
Board of Supervisors Public Hearing #2
Supervisorial Redistricting Ordinance introduced

Late July, 2011
Board of Supervisors Meeting
Supervisorial Redistricting Ordinance set of adoption

30 Days after Board Adopts Redistricting Ordinance
Statue of limitations to challenge ordinance adopting districting boundaries expires (30 days after adoption).

October 31, 2011
Statutory deadline for Board of Supervisors to adopt redistricting ordinance (CA Elections Code Section 21501)