Ohio Senate: Party Control and History

Current seats

Republican majorityDemocrats 9, Republicans 23, vacant 1. 33 seats; 17 for a majority.

Democrats 9Republicans 23Vacant 1

Vacant: district 13. Control counts seats by party; coalitions and power-sharing agreements are not shown.

Members as of November 3, 2026 (Open States), before the winners of the November 3, 2026 elections take office.

Ohio overviewOhio House

District map

Democrat 9Republican 23Vacant 1

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2024: the candidate(s) with the most votes in each contest (MEDSL); contests with unreliable rows are not shown. Lines of the 2024 elections (US Census Bureau).

Members as of November 3, 2026 (Open States), before the winners of the November 3, 2026 elections take office.

Seats after each election, 1968-2022

Seats by election, table

Year	D	R	Other	Seats	Control
2022	7	26	0	33	Republican majority
2020	8	25	0	33	Republican majority
2018	9	24	0	33	Republican majority
2016	9	24	0	33	Republican majority
2014	10	23	0	33	Republican majority
2012	10	23	0	33	Republican majority
2010	10	23	0	33	Republican majority
2008	12	21	0	33	Republican majority
2006	12	21	0	33	Republican majority
2004	11	22	0	33	Republican majority
2002	11	22	0	33	Republican majority
2000	12	21	0	33	Republican majority
1998	12	21	0	33	Republican majority
1996	12	21	0	33	Republican majority
1994	13	20	0	33	Republican majority
1992	13	20	0	33	Republican majority
1990	12	21	0	33	Republican majority
1988	14	19	0	33	Republican majority
1986	15	18	0	33	Republican majority
1984	15	18	0	33	Republican majority
1982	17	16	0	33	Democratic majority
1980	15	18	0	33	Republican majority
1978	18	15	0	33	Democratic majority
1976	21	12	0	33	Democratic majority
1974	21	12	0	33	Democratic majority
1972	16	17	0	33	Republican majority
1970	13	20	0	33	Republican majority
1968	Not available

Carl Klarner, State Legislative Election Returns, 1967-2022: version 1.0, released June 12, 2024; a fixed historic release.

District results, 2016-2024

The candidate with the most votes in each contest.

2024: 17 contests

District	Most votes	Party	Share	Note
2	THERESA GAVARONE	Republican	61.7%
4	GEORGE LANG	Republican	62.9%
6	WILLIS E BLACKSHEAR JR	Democrat	52.0%
8	LOUIS W BLESSING III	Republican	56.7%
10	KYLE KOEHLER	Republican	65.2%
12	SUSAN MANCHESTER	Republican	100.0%	one candidate
14	TERRY A JOHNSON	Republican	72.9%
16	BETH LISTON	Democrat	60.3%
18	JERRY CIRINO	Republican	54.1%
20	TIM SCHAFFER	Republican	67.4%
22	MARK ROMANCHUK	Republican	68.2%
24	THOMAS F PATTON	Republican	53.5%
26	BILL REINEKE	Republican	76.2%
28	CASEY WEINSTEIN	Democrat	55.9%
30	BRIAN M CHAVEZ	Republican	69.3%
32	SANDRA O'BRIEN	Republican	62.9%
33	AL CUTRONA	Republican	60.9%

2022: 17 contests

Incomplete in the source: counties in the file with no rows for this chamber (uncontested seats left off the ballot, or missing data).

District	Most votes	Party	Share	Note
1	ROBERT MCCOLLEY	Republican	100.0%	one candidate
3	MICHELE REYNOLDS	Republican	52.4%
5	STEPHEN A HUFFMAN	Republican	96.4%
7	STEVE WILSON	Republican	61.6%
9	CATHERINE D INGRAM	Democrat	72.8%
11	PAULA HICKS-HUDSON	Democrat	55.3%
13	NATHAN H MANNING	Republican	57.7%
15	HEARCEL F CRAIG	Democrat	100.0%	one candidate
17	SHANE WILKIN	Republican	74.4%
19	ANDREW O BRENNER	Republican	63.0%
21	KENT SMITH	Democrat	83.0%
23	NICKIE J ANTONIO	Democrat	69.3%
25	BILL DEMORA	Democrat	72.9%
27	KRISTINA D ROEGNER	Republican	51.1%
29	KIRK SCHURING	Republican	97.3%
31	AL LANDIS	Republican	100.0%	one candidate
33	MICHAEL ANTHONY RULLI	Republican	66.1%

2020: 16 contests

District	Most votes	Party	Share
2	THERESA GAVARONE	Republican	62.2%
4	GEORGE F LANG	Republican	60.5%
6	NIRAJ ANTANI	Republican	53.2%
8	LOUIS W BLESSING III	Republican	60.1%
10	ROBERT D HACKETT	Republican	65.3%
12	MATT HUFFMAN	Republican	79.3%
14	TERRY A JOHNSON	Republican	72.7%
16	STEPHANIE L KUNZE	Republican	50.0%
18	JERRY CIRINO	Republican	60.5%
20	TIM SCHAFFER	Republican	69.5%
22	MARK ROMANCHUK	Republican	68.9%
24	MATT DOLAN	Republican	54.3%
26	BILL REINEKE	Republican	70.6%
28	VERNON SYKES	Democrat	59.8%
30	FRANK HOAGLAND	Republican	66.8%
32	SANDRA O'BRIEN	Republican	51.0%

2018: 17 contests

Incomplete in the source: counties in the file with no rows for this chamber (uncontested seats left off the ballot, or missing data).

District	Most votes	Party	Share
1	ROBERT MCCOLLEY	Republican	73.3%
3	TINA MAHARATH	Democrat	50.3%
5	STEPHEN A HUFFMAN	Republican	53.6%
7	STEVE WILSON	Republican	62.0%
9	CECIL THOMAS	Democrat	76.3%
11	TERESA FEDOR	Democrat	69.4%
13	NATHAN H MANNING	Republican	52.7%
15	HEARCEL F CRAIG	Democrat	82.5%
17	BOB PETERSON	Republican	70.4%
19	ANDREW O BRENNER	Republican	50.4%
21	SANDRA WILLIAMS	Democrat	87.7%
23	NICKIE J ANTONIO	Democrat	65.4%
25	KENNY YUKO	Democrat	75.0%
27	KRISTINA DALEY ROEGNER	Republican	58.5%
29	KIRK SCHURING	Republican	59.7%
31	JAY HOTTINGER	Republican	66.9%
33	MICHAEL A RULLI	Republican	52.4%

2016: 16 contests

District	Most votes	Party	Share	Note
2	Randy Gardner	not in source	66.4%	seats not in source
4	Bill Coley	not in source	67.7%	seats not in source
6	Peggy Lehner	not in source	68.1%	seats not in source
8	Lou Terhar	not in source	62.9%	seats not in source
10	Robert D. Hackett	not in source	65.1%	seats not in source
12	Matt Huffman	not in source	100.0%	seats not in source; one candidate
14	Joe Uecker	not in source	71.9%	seats not in source
16	Stephanie L. Kunze	not in source	59.0%	seats not in source
18	John J. Eklund	not in source	65.3%	seats not in source
20	Troy Balderson	not in source	100.0%	seats not in source; one candidate
22	Larry J. Obhof	not in source	69.8%	seats not in source
24	Matt Dolan	not in source	58.1%	seats not in source
26	Dave Burke	not in source	100.0%	seats not in source; one candidate
28	Vernon Sykes	not in source	61.2%	seats not in source
30	Frank Hoagland	not in source	52.9%	seats not in source
32	Sean J. O'Brien	not in source	56.4%	seats not in source

MEDSL precinct returns 2016-2024: a fixed historic release; the file records no release date.

Sources

Current members: Open States (CC0 1.0), commit 3a1d876 of November 3, 2026; seat totals from openstates-metadata (MIT).

Seats after each election: Carl Klarner, State Legislative Election Returns, 1967-2022, Harvard Dataverse (CC0 1.0).

District results: MEDSL precinct returns (2018-2024 CC0 1.0; 2016 MIT License).

District lines: US Census Bureau, TIGER/Line cartographic boundaries (public domain), state legislative districts 2024, 1:500,000.

Data through November 3, 2026.