Miami County, Ohio

Miami County Commissioner

2 candidates are tracked for Miami County Commissioner on the November 3, 2026 ballot: Ted Mercer and William M. Whitten. Candidate information follows official Miami County election filings; verify with the official election office linked below.

About this race

Republican incumbent Ted Mercer, seeking a third term, faces Democratic challenger William M. Whitten on the Nov. 3 ballot for a four-year term beginning Jan. 1, 2027, per the Dayton Daily News. This contest is on the November 3, 2026 ballot.

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. Four-year term. The sitting officeholder, Ted Mercer, is on the ballot.

Ohio › Miami County › Miami County Commissioner

Ted Mercer

Republican Incumbent

Top priorities

Pursue state-level property tax reform to provide relief for homeowners, farmers and businesses while protecting essential local services
Construct a new county animal shelter and expand the Job and Family Services Center
Update the county zoning code with stronger regulations for large-scale developments such as data centers

Per the Dayton Daily News.

Biography

Ted Mercer is the owner and president of Mercer Group, Inc., a regional athletic field contracting company based in Troy, and brings more than 45 years of business experience to the office, per the Miami County official biography. He is seeking a third term as Miami County commissioner, per the Dayton Daily News. No campaign website was found as of September 10, 2026; the official election filing is the only verifiable source for Ted Mercer.

William M. Whitten

Democrat

Top priorities

Strengthen local infrastructure
Support agriculture and preserve the county's rural character
Promote job creation and economic opportunity for residents and small businesses

Per the Dayton Daily News.

Biography

William M. Whitten has spent more than 40 years in the construction industry as a project manager, superintendent and general foreman for major steel erection contractors, per the Dayton Daily News. A union ironworker since 1979, he has served more than 20 years on the Ironworkers Executive Committee, per the Dayton Daily News. No campaign website was found as of September 10, 2026; the official election filing is the only verifiable source for William M. Whitten.

Next on your ballotMiami County Auditor

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Voting info and more

Questions about this race

Who is running for Miami County Commissioner in 2026?

When is the Miami County Commissioner election in Ohio?

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

How do I see my exact Miami 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 Miami County and state election office filings, last verified September 25, 2026. Bios and priorities carry their attribution inline.

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

The rest of your Miami County ballot

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

Also on your ballot

Judge of the Miami County Court of Common Pleas Judge of the Miami County Court of Common Pleas, Juvenile/Probate Division Ohio Senate District 5 See all 6 Miami County races

Candidate profiles

Ted Mercer, full profile William M. Whitten, full profile Official Ohio election office