The Ballot Brief
Alameda County, California

California Assembly District 18

2 candidates are tracked for California Assembly District 18 on the November 3, 2026 ballot: Mia Bonta and Andre Sandford. Candidate information follows official Alameda County election filings; verify with the official election office linked below.

About this race

Mia Bonta (Democratic) and Andre Sandford (Democratic) meet on the November 3 ballot; Mia Bonta is the incumbent, per the Secretary of State's list. Both are Democrats: the top-two primary sends the two leading vote-getters to November regardless of party. June 2 top-two primary result: Mia Bonta (DEM) 76.9 percent and Andre Sandford (DEM) 10.9 percent advanced over Ned Nuerge (REP) 7.2 percent, Michael Goldstein (GRN) 5.0 percent, per the Secretary of State's Statement of Vote. California's top-two primary decides who prints in November; the field is the Secretary of State's Certified List of Candidates for the General Election (August 27, 2026). This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Mia Bonta, is on the ballot.

California › Alameda County › California Assembly District 18

Mia Bonta

Mia Bonta

Democratic Incumbent

Top priorities
  • healthcare access
  • public safety investments
  • support for children and families

Per the campaign site.

Biography

Mia Bonta is the Democratic Assemblymember representing California's 18th Assembly District, per her campaign site. She chairs the Assembly Health Committee and founded the California Legislative Children's Caucus, and previously led an East Bay nonprofit.

Andre Sandford

Democratic

Biography

Andre Sandford is a candidate for California Assembly District 18. His ballot designation is Housing Program Director, per the Alameda County Registrar of Voters' official 2026 general election candidate list.

Next on your ballotCalifornia Assembly District 20

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Voting info and more

Voting info and more
Questions about this race

Who is running for California Assembly District 18 in 2026?

2 candidates are tracked for California Assembly District 18 on the November 3, 2026 ballot: Mia Bonta and Andre Sandford. Candidate information follows official Alameda County election filings; verify with the official election office linked below.

When is the California Assembly District 18 election in California?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for California are on the California election hub at theballotbrief.com.

How do I see my exact Alameda County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Alameda County and state election office filings, last verified September 27, 2026. Bios and priorities carry their attribution inline.

Cross-check with the official California election office, or see the full Alameda County sample ballot and your exact ballot by address.

The rest of your Alameda County ballot

10 tracked races in Alameda County, California. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
California Assembly District 24Alameda County Board of Supervisors, District 3Alameda County Superintendent of SchoolsSee all 10 Alameda County races
Candidate profiles
Mia Bonta, full profileAndre Sandford, full profileOfficial California election office