The Ballot Brief
Alameda County, California

Alameda County Board of Supervisors, District 3

One candidate is tracked for Alameda County Board of Supervisors, District 3 on the November 3, 2026 ballot: Lena Tam. Candidate information follows official Alameda County election filings; verify with the official election office linked below.

About this race

Lena Tam is unopposed and is the only candidate listed for this seat on the November 3, 2026 ballot, per the Alameda Post's Alameda election guide.

What this office does

County commissioner. The county board is the county's legislative and, in most states, executive body. Commissioners adopt the county budget and property tax rate, oversee roads, the jail, public health, planning and zoning in unincorporated areas, and appoint or confirm department heads. In counties with an elected county executive or judge, the board's role is mainly the budget and ordinances.

This race. Nonpartisan: candidates appear without party labels. The sitting officeholder, Lena Tam, is on the ballot. One name is on the ballot for this seat.

California › Alameda County › Alameda County Board of Supervisors, District 3

Lena Tam

Nonpartisan Incumbent

Top priorities
  • Expanding equitable access to culturally and linguistically appropriate mental health care, especially for underserved communities
  • Strengthening transparency and accountability in county government, building on the Sunshine Ordinance passed as vice mayor
  • Supporting healthcare, public safety, and family well-being across the county

Per the campaign site.

Biography

Tam has served on the Alameda County Board of Supervisors since being elected in November 2022, per the campaign site. Before that, Tam spent 30 years as a water resources planning manager at the East Bay Municipal Utility District and served as Alameda's vice mayor and city council member, per the campaign site. Tam holds a master's degree in public administration from the University of San Francisco and a bachelor's degree in environmental engineering from UC Berkeley, per the campaign site.

Campaign site (opens in a new tab)
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Questions about this race

Who is running for Alameda County Board of Supervisors, District 3 in 2026?

One candidate is tracked for Alameda County Board of Supervisors, District 3 on the November 3, 2026 ballot: Lena Tam. Candidate information follows official Alameda County election filings; verify with the official election office linked below.

When is the Alameda County Board of Supervisors, District 3 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
AC Transit (Alameda-Contra Costa Transit District) Board of Directors, Ward 3Regional Transit Measure RTMCalifornia Senate District 10See all 10 Alameda County races
Candidate profiles
Lena Tam, full profileOfficial California election office