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HomeElections CodeDiv. 21Ch. 6§ 21500 County Supervisorial District Boundaries

§ 21500 County Supervisorial District Boundaries

Elections Code·California
AI Summary·Official Text·Key Terms·Related Statutes·References
AI SummaryVerified

§ 21500 County Supervisorial District Boundaries

Key Takeaways

  • •If a county decides to elect its leaders by districts, they must draw new district lines.
  • •After every 10-year census, counties with district elections must update their district lines.
  • •The county leaders must officially approve the new district boundaries.

Example

After the 2030 census, a county finds that some districts have way more people than others.

The county leaders must redraw the district lines so each district has about the same number of people, then officially approve the new map.

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source
View on CA.gov

§ 21500 County Supervisorial District Boundaries

Following a county’s decision to elect its board using district-based elections, or following each federal decennial census for a county whose board is already elected using district-based elections, the board shall, by ordinance or resolution, adopt boundaries for all of the supervisorial districts of the county pursuant to Chapter 2 (commencing with Section 21100). (Amended by Stats. 2023, Ch. 343, Sec. 15. (AB 764) Effective January 1, 2024.)

Last verified: January 23, 2026

Key Terms

district-based electionsfederal decennial censussupervisorial districtsordinance or resolutionChapter 2Section 21100

Related Statutes

  • § 21601 Council District Boundary Adoption
  • § 21621 District Boundary Adjustments
  • § 21503 Redistricting Boundary Adjustment Rules
  • § 22000 Special District Election Boundaries
  • § 13500 Partisan Primary Election Rules

References

  • Official text at leginfo.legislature.ca.gov
  • California Legislature. Elections Code. Section 21500.
View Official Source