Do county residents have a voice in redistricting?

Yes.  All members of the public are encouraged to share their views about county redistricting at any of the public meetings. The public meetings are scheduled at the following locations:

  • May 24 – 7 p.m. to 8:30 p.m., Solano County Events Center, 601 Texas St. in Fairfield

  • May 25 – 7 p.m. to 8:30 p.m., Dixon City Hall, 600 East A St. in Dixon

  • May 26 – 7 p.m. to 8:30 p.m., Solano Community College Vallejo Campus. Room 122, 545 Columbus Parkway in Vallejo

  • June 13 – 6:30 p.m. to 8:30 p.m., Vacaville Town Square Library, 1 Town Square Plaza in Vacaville.

The purpose of the meetings is for residents to review and provide comments on the various redistricting scenarios developed by the consultant. Ultimately, the input from the meetings will help the County develop its redistricting plans.

How has Solano County’s population changed?

According to the U.S. Census data, Solano County’s population has grown from 394,542 in 2000 to 413,344 in 2010.  The chart below shows the population of the supervisorial districts after the redistricting was completed in 2001 and what the population looks like after the 2010 Census.




District 1



District 2



District 3



District 4



District 5



Extracts of the data for California, counties, places (incorporated cities and Census Designated Placed or CDP) and census tracts are available on the Demographic Research Unit website.

2010 Census

How has the County prepared for redistricting?
The Board of Supervisors adopted a work program in January 2011 that outlines the redistricting process. The Board received an update in April on the initial analysis of the 2010 Census data.  The County’s website will offer residents a way to keep informed on the redistricting process.

What factors can be taken into consideration when redistricting?

California Elections Code states that the Board of Supervisors may give consideration to factors including geography, cohesiveness, contiguity, integrity, and compactness of territory, and communities of interest in the districts.  This means districts should have simple shapes and respect other political boundary lines when possible, as well as preserve local communities of interest based on cultural, ethnic, geographic, and socio-economic similarities, and other common interests.  The process starts with the aim of reaching zero disparity among the districts and deviates only if an articulated, legitimate reason is expressed in the record.

What impact does redistricting have on residents in supervisorial districts?

Redistricting will determine the boundaries of the five supervisorial districts, so everyone living in the county has a stake. Any adjustments will determine the supervisorial district within which a citizen votes, beginning with the 2012 elections. At the county-level, the redistricting task relates only to creating districts where residents will vote for individuals to represent them on the Solano County Board of Supervisors. The County does not reapportion congressional seats, adjust other electoral district boundaries or allocate federal funding for local programs.

What is Redistricting?
Redistricting is the redrawing or adjusting of electoral district boundaries following the federal Census to account for population shifts and growth during the previous decade. The redistricting process is governed by the U.S. Constitution, state and federal law.

What is Solano County’s role in redistricting?

California Elections Code § 21500 requires the Board of Supervisors to adjust the Supervisorial district boundaries every ten years following the federal Census so that the districts are as nearly equal in population as possible and comply with the Voting Rights Act. The County’s redistricting process includes opportunity for public review and input.

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