Oklahoma County, Oklahoma

Oklahoma County Commissioner District 3

2 candidates are tracked for Oklahoma County Commissioner District 3, headed to a November 3, 2026 runoff: Jessica Clayton and Jennifer Mayo. Candidate information follows official Oklahoma County election filings; verify with the official election office linked below.

About this race

Jessica Clayton (Republican) and Jennifer Mayo (Democratic) meet on the November 3 ballot for Oklahoma County Commissioner District 3, per the State Election Board's candidate filing portal (county filings) and official results. No candidate reached a majority in the June 16 Republican primary (Jessica Clayton 41.79 percent, Alex Warren (24.27 percent), Wendy Jo Hampton (24.23 percent), Thomas Gerald Parkhurst (5.43 percent), Scott Wesley Ermis (4.28 percent)); Jessica Clayton won the August 25 runoff with 63.09 percent over Alex Warren. Jennifer Mayo won the June 16 Democratic primary with 69.69 percent over Corey Winston (19.43 percent), Thomas Guild (10.88 percent). Oklahoma prints unopposed nominees; independents who filed also print.

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.

Oklahoma › Oklahoma County › Oklahoma County Commissioner District 3

Jessica Clayton

Republican

Top priorities

Increased transparency and oversight in county government operations
Fiscal responsibility, having overseen more than $50 million in department budgets
Restoring public trust and accountability to constituents

Per the campaign site.

Biography

Clayton serves as Oklahoma County Manager, overseeing county operations, budgets, and more than $160 million in grants, per the campaign site. She previously served as president and CEO of Daily Living Centers and held vice president roles at financial institutions, per the campaign site.

Campaign site (opens in a new tab)

Jennifer Mayo

Democratic

Top priorities

Budget accountability, citing more than $500 million committed without a secured funding source
Prioritizing core infrastructure such as roads, bridges, drainage, and infrastructure planning
Addressing criminal justice system delays and improving mental health support and staffing

Per the campaign site.

Biography

Mayo is a program director at Hunger Free Oklahoma, where she works to improve food access across the state, per the campaign site. She has spent a decade in the nonprofit sector working on food banks, United Way programs, and cross-sector coordination involving public funding and policy, per the campaign site.

Campaign site (opens in a new tab)

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Voting info and more

Questions about this race

Who is running for Oklahoma County Commissioner District 3 in 2026?

When is the Oklahoma County Commissioner District 3 election in Oklahoma?

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

How do I see my exact Oklahoma 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 Oklahoma County and state election office filings, last verified September 27, 2026. Bios and priorities carry their attribution inline.

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

The rest of your Oklahoma County ballot

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

Also on your ballot

Oklahoma Senate District 18 Oklahoma Senate District 22 Oklahoma Senate District 28 See all 38 Oklahoma County races

Candidate profiles

Jessica Clayton, full profile Jennifer Mayo, full profile Official Oklahoma election office