Measure U: Measure U – San Mateo County Charter Amendment Measure – Reapportionment of Supervisorial Districts
San Mateo County · San Mateo County · November 3, 2026
The question on your ballot
Shall the San Mateo County Charter be amended to require that supervisorial districts be reapportioned following each federal decennial census by an independent redistricting commission pursuant to applicable provisions of the California Elections Code?
In plain language
Measure U would change the San Mateo County Charter. After each U.S. census, which happens every ten years, the lines for supervisor districts are redrawn. Measure U would require an independent redistricting commission to redraw them. The commission would follow the California Elections Code. A YES vote makes this change. A NO vote means this change does not happen.
Official ballot arguments
Filed for the official voter guide by each side, printed as submitted.
The official arguments will appear here once both sides’ arguments are on file.
What supporters and opponents say — outside sources (not official ballot arguments)
Statements by campaigns, officials and news coverage, quoted with attribution and linked to the original. VoterDecoder did not write them and does not endorse either side.
Supporters say
“Measure U will establish the Independent Redistricting Commission.”
— League of Women Voters, South San Mateo County, League of Women Voters of North/Central and South San Mateo County (2026) · Vote With the League - Measure URead the source →“An IRC reduces conflicts of interest by removing direct control from elected officials.”
— League of Women Voters of North and Central San Mateo County; League of Women Voters of South San Mateo County, League of Women Voters of North/Central and South San Mateo County (2026) · Measure U - Pros & ConsRead the source →
Opponents say
No public statements against were found.