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Frequently Asked Questions


Every ten years, districts must be redrawn so that each supervisorial district is substantially equal in population. This process, called redistricting, is important in ensuring that each board member represents about the same number of constituents. The San Bernardino County Board of Supervisors is responsible for drawing supervisorial districts.

The Board of Supervisors has adopted an ordinance establishing an Advisory Redistricting Commission, similar to that of other local boards and commissions, consisting of San Bernardino County residents and retired judges selected through a specific application process and final appointment by the Board of Supervisors. The Advisory Redistricting Commission is required to recommend to the Board of Supervisors a minimum of two possible supervisorial district maps.  Redistricting is done using U.S. Census data, which is expected to be released around September 30, 2021. For San Bernardino County, the redistricting process must be completed by December 15, 2021.

Redistricting determines which neighborhoods and communities are grouped together into a district for purposes of electing a board member. “Communities of interest” are populations that share common social or economic interests that to the extent practicable, should be included within a single supervisorial district.

The Board of Supervisors and Advisory Redistricting Commission will seek input in selecting the next district map for our supervisorial districts. You have an opportunity to share with the Board of Supervisors and Advisory Redistricting Commission how you think district boundaries should be drawn to best represent your community. San Bernardino County is welcoming public input and engagement throughout the redistricting process. The public is highly encouraged to submit their communities of interest and draft map submissions.

You can contact the Clerk of the Board at 909-387-3841 to find out more about how the process works.

You can find a current map of the San Bernardino County’s supervisorial districts, in addition to previous maps of the San Bernardino County’s supervisorial districts here:

View Map of San Bernardino County’s Supervisorial Districts

Each district shall be relatively equal in population and comply with the U.S. Constitution, California Constitution and Federal Voting Rights Act.  In addition, to the extent practicable, district lines shall be adopted using the following criteria: (1) geographically contiguous districts (each supervisorial district should share a common border with the next), (2) the geographic integrity of local neighborhoods or communities shall be respected in a manner that minimizes its division, (3) geographic integrity of a city shall be respected in a manner that minimizes its division, (4) easily identifiable boundaries that follow natural or artificial barriers (rivers, streets, highways, rail lines, etc.), and (5) lines shall be drawn to encourage geographic compactness.  In addition, boundaries shall not be drawn for purposes of favoring or discriminating against a political party.

The Board of Supervisors and Advisory Redistricting Commission will reach out to local media to publicize the redistricting process. Also, we will make a good faith effort to notify community groups of various kinds about the redistricting process. Our public hearings will be provided in applicable languages if residents submit a request in advance. Submit translation request to the Clerk of the Board.

The Board of Supervisors will notify the public about redistricting public hearings, post maps online  before adoption, and create a dedicated web page for all relevant information about the redistricting process.

The Board of Supervisors and Advisory Redistricting Commission will be holding public hearings to receive public input on where district lines should be drawn. Those public hearings will be held on:

Dates, locations, and times to be announced.

You can also submit general questions, by emailing:

You can also submit suggested draft maps, by emailing:

The new supervisorial District boundary lines take affect with the 2022 primary election.

The federal legislation passed in 1965 to ensure state and local governments do not pass laws or policies that deny citizens the equal right to vote based on race.  Section 2 of the Federal Voting Rights Act prohibits voting practices or procedures that discriminate on the basis of race, color or membership in one of the language minority groups.

A state law prohibiting the use of at-large districts in any agency with racially polarized voting.