County of San Diego Independent Redistricting Commission

Help shape San Diego County’s future!

Map of San Diego County

The County of San Diego Independent Redistricting Commission is beginning the work to redraw the boundaries for the County’s five supervisorial districts. District lines can shape a community’s ability to elect the representative of their choice.

Redistricting takes place every 10 years after the federal census. District boundaries for federal, state and local elected offices are redrawn to reflect new population data and shifting populations.    

The County’s district boundaries will change so the five County supervisors elected to represent those districts each serve about 650,000 residents and reflects the County’s diverse population.  

Fourteen people were selected for the County's Independent Redistricting Commission. The process will act independently from the influence of the Board of Supervisors and reasonably represent the County’s diversity.

Commission Selection Process Complete

Thank you to the nearly 300 individuals that applied to serve on the County of San Diego's Independent Redistricting Commission. In accordance with California Elections Code Section 21550(c), the selection process for individuals to serve on the Independent Redistricting Commission has been completed. For information about the Commissioners, please click here.

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Click to subscribe to updates about the Independent Redistricting Commission's work to redraw the Supervisorial boundaries.

Frequently Asked Questions

Below are helpful frequently asked questions about the process. If you have additional questions, please e-mail redistricting@sdcounty.ca.gov.

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  • What is redistricting?

    Every ten years, after the federal census, district boundaries for federal, state and local elected offices are redrawn to reflect new population data and shifting populations. This process is called redistricting. 

    The County of San Diego must redraw the boundaries of its five supervisorial districts. The redrawing ensures that the five County supervisors elected to represent the five supervisorial districts are reflective of the County’s diverse population. How and where district lines are drawn can shape a community’s ability to elect the representative of their choice.

    Each supervisor is responsible for representing approximately 650,000 residents of San Diego County in a specific geographic area. To learn more about the County of San Diego, the County supervisors and their districts, click here.

    To comply with the County Charter, the supervisorial district boundaries must be drawn to include unincorporated territory in at least three of the five districts. Two of the districts must include geographic area that is mainly outside of the incorporated cities.

  • What are the incorporated cities and what is unincorporated territory in San Diego County?

    San Diego County includes 18 incorporated cities. Each city has its own municipal government represented by a mayor and city council members.

    For a map and list of the incorporated cities in San Diego County, click here.

    Unincorporated territory is land outside the boundaries of the 18 incorporated cities. Much of the unincorporated territory is located in rural areas in the eastern and northern portions of the county. The County of San Diego serves as the primary local government agency in unincorporated areas.

    For a map and list of unincorporated communities in San Diego County, click here.

    Five supervisorial districts cover the county. The incorporated cities govern their own populations but the County Board of Supervisors is responsible for some operations that affect residents in both the incorporated and unincorporated areas. For example, public health, restaurant inspections, street maintenance, planning and development, etc.

  • Who is responsible for deciding the new supervisorial district boundaries?

    Under a new state law (Elections Code Section 21550), the responsibilities for drawing the new district boundaries will be led by the County’s Independent Redistricting Commission. Fourteen San Diego County residents willing to volunteer their time will be selected from a list of applicants. The selection process is designed to produce a commission that is independent from the influence of the Board of Supervisors and reasonably representative of the County’s diversity.

  • Who do I contact if I have questions?

    Please contact the Redistricting Team via email at redistricting@sdcounty.ca.gov.