San Mateo County Measure U: Charter Amendment - Reapportionment of Supervisorial Districts
Unofficial result: Passed
Source: smcacre.gov
San Mateo County, California
My vote power: High
What does this measure do?
Measure U has an independent commission, not the Board of Supervisors, redraw the five supervisor district lines after each 10-year census. The board would no longer draw its own districts; taxes do not change.
Read the official ballot measure (PDF)
Proposed by: San Mateo County Board of Supervisors (Resolution 081882, May 19, 2026)
The county's elected Board of Supervisors put this change to the county charter (the county's rulebook) to voters. A charter can only be changed by a public vote.
Source: smcacre.gov
A YES vote means
After each census, an independent redistricting commission set up under state law draws the five supervisor districts instead of the Board of Supervisors.
A NO vote means
The Board of Supervisors keeps drawing its own district lines by county law after each census.
Source: smcacre.gov
Source: smcacre.gov