Butler County, Ohio

Butler County Commissioner

2 candidates are tracked for Butler County Commissioner on the November 3, 2026 ballot: Michael V. Ryan and Mike Miller. Candidate information follows official Butler County election filings; verify with the official election office linked below.

About this race

Sitting Commissioner Cindy Carpenter (R), seeking a fifth term, lost the May 5, 2026 Republican primary to Michael Ryan, a former Hamilton City Council member, per the Journal-News. Ryan faces Democrat Mike Miller, who ran unopposed in the Democratic primary, in the November general election.

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.

Ohio › Butler County › Butler County Commissioner

Michael V. Ryan

Republican

Top priorities

Economic development, citing job creation and capital investment in Hamilton during his council tenure
Fiscal responsibility, including balanced budgets and eliminating general obligation debt

Per the campaign site.

Biography

Ryan has worked for a decade as a life insurance underwriter at Western & Southern Financial Group and served eight years on Hamilton City Council, including as vice mayor, per the campaign site. He is a Wright State University graduate and lifelong Hamilton, Ohio resident, per the campaign site.

Campaign site (opens in a new tab)

Mike Miller

Democratic

Biography

Mike Miller is a longtime southwest Ohio resident, youth sports coach, and community volunteer, per the Butler County Democratic Party. No campaign website was found as of September 10, 2026; the official election filing is the only verifiable source for Mike Miller.

Next on your ballotButler County Auditor

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Voting info and more

Questions about this race

Who is running for Butler County Commissioner in 2026?

When is the Butler 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 Butler 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 Butler County and state election office filings, last verified October 1, 2026. Bios and priorities carry their attribution inline.

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

The rest of your Butler County ballot

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

Also on your ballot

Butler County Court of Common Pleas Judge (General Division, full term commencing 1-1-2027)Butler County Court of Common Pleas Judge (General Division, full term commencing 1-3-2027)Butler County Court of Common Pleas Judge (General Division, full term commencing 2-9-2027)See all 14 Butler County races

Candidate profiles

Michael V. Ryan, full profile Mike Miller, full profile Official Ohio election office