How many registered voters are in Butler County, Ohio?

218,996 active registered voters are on file for Butler County, including 156,474 Unaffiliated (71.5%) and 48,357 Republican (22.1%). Counts come from the state's public voter file.

How many Butler County voters actually vote?

161,741 (73.9%) are super or frequent voters — they participated in all or most recent even-year November general elections, per the public vote history.

Where does this data come from?

Each state's public voter file (Ohio, Florida, North Carolina), as of VoterVault's latest ingest. Counts are active registrations and may differ slightly from official Secretary of State reports.

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Butler County, Ohio — voter registration

Party breakdown, turnout reliability, and youth share — live from the public voter file.

218,996

active registered voters on file in Butler County (3.2% of Ohio)

17,563

voters aged 18-24 (8.0%)

73.9%

vote reliably (super + frequent)

Registration by party

Unaffiliated 156,474 · 71.5%

Republican 48,357 · 22.1%

Democrat 14,165 · 6.5%

Two-party split: 22.7% Democratic here vs 35.5% statewide — Butler County leans more Republican than the Ohio average by 12.8 points.

Who actually votes

Super voters 70,566 · 32.2%

Frequent voters 91,175 · 41.6%

Occasional voters 35,621 · 16.3%

Rare voters 21,634 · 9.9%

Tiers score each voter's participation in recent even-year November general elections from the public vote history — 161,741 voters here are the reliable electorate a campaign can actually count on.

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Lists cut by county and party at $0.03/record standard — likely-voter (turnout-scored), fresh-registrant, and 18-24 premium cuts available where shown.

FAQ

How many registered voters are in Butler County, Ohio?: 218,996 active registered voters are on file for Butler County, including 156,474 Unaffiliated (71.5%) and 48,357 Republican (22.1%). Counts come from the state's public voter file.
How many Butler County voters actually vote?: 161,741 (73.9%) are super or frequent voters — they participated in all or most recent even-year November general elections, per the public vote history.
Where does this data come from?: Each state's public voter file (Ohio, Florida, North Carolina), as of VoterVault's latest ingest. Counts are active registrations and may differ slightly from official Secretary of State reports.

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Counts are active registered voters from each state's public voter file as of VoterVault's latest ingest — they may differ slightly from official Secretary of State reports. Ohio has no party registration: the file derives party from the most recent partisan primary each voter pulled, so "Unaffiliated" simply means no recent primary ballot. Turnout tiers score participation in recent even-year November general elections from public vote history. Aggregate market data only — no personal information is shown on this page. Public-record data sold for lawful political/electoral use; VoterVault performs no outreach and is not affiliated with any election authority.