The Ballot Brief
Orange County, California

Orange County Board of Supervisors, District 5

2 candidates are tracked for Orange County Board of Supervisors, District 5, headed to a November 3, 2026 runoff: Katrina Foley and Diane Dixon. Candidate information follows official Orange County election filings; verify with the official election office linked below.

About this race

Incumbent Katrina Foley and challenger Diane Dixon, a state assemblymember, were the leading finishers as June 2 primary counts continued; LAist reported a November runoff between them as 'all but guaranteed,' but final certified placement was not independently confirmed within this task's research budget -- verify against the Registrar of Voters' certified statement of vote before publishing.

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.

California › Orange County › Orange County Board of Supervisors, District 5

Katrina Foley

Nonpartisan

Top priorities
  • Providing oversight and accountability on the Board of Supervisors

Per the campaign site.

Biography

Foley currently serves on the Orange County Board of Supervisors after previously serving as Costa Mesa's first directly elected mayor and twelve years on the Costa Mesa City Council, per the campaign site. She is an attorney and business owner who also served on the Newport-Mesa Unified School District Board of Trustees, per the campaign site.

Diane Dixon

Nonpartisan

Top priorities
  • Streamlining business permitting and regulation
  • Public safety, including fentanyl enforcement and community awareness
  • Fiscal accountability in housing and economic development policy

Per the campaign site.

Biography

Dixon is a California State Assemblywoman who spent more than three decades as a senior executive in the private sector before entering public service, per the campaign site. She served two terms on the Newport Beach City Council, including as mayor, before her current legislative role, per the campaign site.

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Questions about this race

Who is running for Orange County Board of Supervisors, District 5 in 2026?

2 candidates are tracked for Orange County Board of Supervisors, District 5, headed to a November 3, 2026 runoff: Katrina Foley and Diane Dixon. Candidate information follows official Orange County election filings; verify with the official election office linked below.

When is the Orange County Board of Supervisors, District 5 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 Orange 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 Orange County and state election office filings, last verified September 8, 2026. Bios and priorities carry their attribution inline.

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

The rest of your Orange County ballot

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

Also on your ballot
California Senate District 32California Senate District 34California Senate District 36See all 15 Orange County races
Candidate profiles
Katrina Foley, full profileDiane Dixon, full profileOfficial California election office