View source for Political party strength in Ohio

{{Short description|Politics in the US state of Ohio}}
{{More citations needed|date=September 2020}}
The following table indicates the party of elected officials in the [[U.S. state]] of [[Ohio]]:
*[[List of governors of Ohio|Governor]]
*[[List of lieutenant governors of Ohio|Lieutenant Governor]]
*[[Ohio Attorney General|Attorney General]]
*[[Ohio Secretary of State|Secretary of State]]
*[[Ohio State Treasurer|State Treasurer]]
*[[Ohio State Auditor|State Auditor]]

The table also indicates the historical party composition in the:
*[[Ohio Senate|State Senate]]
*[[Ohio House of Representatives|State House of Representatives]]
*[[Supreme Court of Ohio|State Supreme Court]]
*[[List of United States senators from Ohio|State delegation to the U.S. Senate]]
*[[List of United States representatives from Ohio|State delegation to the U.S. House of Representatives]]

For years in which a [[United States presidential election|presidential election]] was held, the table indicates which party's nominees received the state's electoral votes. Also indicated is the party that controlled the [[Ohio Apportionment Board]], which draws legislative districts for the [[Ohio General Assembly]] in the years following the [[United States census|United States Census]].

==1788–1845==
{{sticky header}}
{| class="wikitable sortable sticky-header-multi" style="text-align:center"
!rowspan=2 class=unsortable |Year!! colspan=4 |Executive offices!!colspan=2|[[Ohio General Assembly|State Legislature]]!! rowspan=2 class=unsortable |[[Supreme Court of Ohio|Ohio<br/>Supreme<br/>Court]]!!colspan=3|[[United States congressional delegations from Ohio|United States Congress]]!!rowspan=2 class=unsortable |[[United States presidential election|Electoral votes]]
|- style="height:2em"
! class=unsortable |[[List of governors of Ohio|Governor]]!! class=unsortable |[[Ohio Secretary of State|Secretary of State]]!! class=unsortable |[[Ohio State Treasurer|Treasurer]]!! class=unsortable |[[Ohio State Auditor|Auditor]]!! class=unsortable |[[Ohio Senate|Senate]]!! class=unsortable |[[Ohio House of Representatives|House]]!! class=unsortable |[[List of United States senators from Ohio|Senator<br/>(Class I)]]!! class=unsortable |[[List of United States senators from Ohio|Senator<br/>(Class III)]]!! class=unsortable |[[List of United States representatives from Ohio|House]]
|- style="height:2em"
!1788
|rowspan=15 {{Party shading/Federalist}}|[[Arthur St. Clair]] <small>(F)</small>{{efn|Governor of the [[Northwest Territory]] appointed by the [[Continental Congress]]. There was no Ohio Territory; Ohio is considered the successor state to the Northwest Territory.}}
|rowspan=11 {{Party shading/Federalist}}|[[Winthrop Sargent]] <small>(F)</small> 
|
|
|
|
|
|
|
|
|rowspan=16|{{efn|Ohio was accepted into the Union in 1803, and cast its first votes for president in the 1804 election.}}
|- style="height:2em"
!1789
|- style="height:2em"
!1790
|- style="height:2em"
!1791
|- style="height:2em"
!1792
|- style="height:2em"
!1793
|- style="height:2em"
!1794
|- style="height:2em"
!1795
|- style="height:2em"
!1796
|rowspan=7 {{Party shading/Federalist}}|[[John Armstrong (frontiersman)|John Armstrong]] <small>(F)</small>
|- style="height:2em"
!1797
|- style="height:2em"
!1798
|- style="height:2em"
!1799
|{{Party shading/Federalist}}|[[William Henry Harrison]] <small>(F)</small>
|- style="height:2em"
!1800
|rowspan=3 {{Party shading/Democratic-Republican}}|[[Charles Willing Byrd]] <small>(DR)</small>
|- style="height:2em"
!1801
|- style="height:2em"
!1802
|- style="height:2em"
!1803
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Edward Tiffin]] <small>(DR)</small>{{efn|name=res-senate|Resigned to take an elected seat in the [[United States Senate]].}}
|rowspan=5 {{Party shading/Democratic-Republican}} |[[William Creighton Jr.]] <small>(DR)</small>
|rowspan=13 {{Party shading/Democratic-Republican}}|[[William McFarland (Ohio)|William McFarland]] <small>(DR)</small> 
|rowspan=5 {{Party shading/Democratic-Republican}}|[[Thomas Gibson (American politician)|Thomas Gibson]] <small>(DR)</small>
| rowspan=23 {{Party shading/Democratic-Republican}}|DR maj.
| rowspan=23 {{Party shading/Democratic-Republican}}|DR maj.
| rowspan=5 {{Party shading/Democratic-Republican}}|3DR
|rowspan=5 {{Party shading/Democratic-Republican}}|[[John Smith (Ohio politician, died 1824)|John Smith]] <small>(DR)</small>
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Thomas Worthington (governor)|Thomas Worthington]] <small>(DR)</small>
|rowspan=10 {{Party shading/Democratic-Republican}}|[[Jeremiah Morrow|1DR]]
|- style="height:2em"
!1804
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Thomas Jefferson]]/<br/>[[George Clinton (vice president)|George Clinton]] <small>(DR)</small> {{Aye}}
|- style="height:2em"
!1805
|- style="height:2em"
!1806
|- style="height:2em"
!1807
|{{Party shading/Democratic-Republican}}|[[Thomas Kirker]] <small>(DR)</small>{{efn|name=speaker-acted|As speaker of the Senate, acted as governor for unexpired term.}}
|rowspan=2 {{Party shading/Democratic-Republican}}|[[Edward Tiffin]] <small>(DR)</small>
|- style="height:2em"
!1808
|rowspan=2 {{Party shading/Democratic-Republican}}|[[Samuel Huntington (Ohio politician)|Samuel Huntington]] <small>(DR)</small>{{efn|The 1808 election was actually won by [[Return J. Meigs Jr.]], but Meigs was declared ineligible for office for failing residency requirements.}}
|rowspan=24 {{Party shading/Democratic-Republican}}|[[Jeremiah McLene]] <small>(DR)</small>
|rowspan=7 {{Party shading/Democratic-Republican}}|[[Benjamin Hough]] <small>(DR)</small>
| rowspan=3 {{Party shading/Democratic-Republican}}|4DR
| {{Party shading/Democratic-Republican}} |''vacant''
| rowspan=4 {{Party shading/Democratic-Republican}} |[[James Madison]]/<br/>[[George Clinton (vice president)|George Clinton]] <small>(DR)</small> {{Aye}}
|- style="height:2em"
!1809
| rowspan=2 {{Party shading/Democratic-Republican}}|[[Return J. Meigs Jr.]] <small>(DR)</small>
|{{Party shading/Democratic-Republican}}|[[Stanley Griswold]] <small>(DR)</small>
|- style="height:2em"
!1810
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Return J. Meigs Jr.]] <small>(DR)</small>{{efn|Resigned to become [[United States Postmaster General]].}}
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Alexander Campbell (Ohio politician)|Alexander Campbell]] <small>(DR)</small>
|- style="height:2em"
!1811
| rowspan=5 {{Party shading/Democratic-Republican}}|3DR
| rowspan=4 {{Party shading/Democratic-Republican}} |[[Thomas Worthington (governor)|Thomas Worthington]] <small>(DR)</small>
|- style="height:2em"
!1812
| rowspan=4 {{Party shading/Democratic-Republican}} |[[James Madison]]/<br/>[[Elbridge Gerry]] <small>(DR)</small> {{Aye}}
|- style="height:2em"
!1813
|rowspan=11 {{Party shading/Democratic-Republican}}|6DR
|- style="height:2em"
!1814
|{{Party shading/Democratic-Republican}} |[[Othniel Looker]] <small>(DR)</small>{{efn|name=speaker-acted}}
|rowspan=5 {{Party shading/Democratic-Republican}}|[[Jeremiah Morrow]] <small>(DR)</small>
|- style="height:2em"
!1815
| rowspan=3 {{Party shading/Democratic-Republican}}|[[Thomas Worthington (governor)|Thomas Worthington]] <small>(DR)</small>
|rowspan=19 {{Party shading/Democratic-Republican}}|[[Ralph Osborn]] <small>(DR)</small>
|{{Party shading/Democratic-Republican}}|[[Joseph Kerr]] <small>(DR)</small>
|- style="height:2em"
!1816
| rowspan=4 {{Party shading/Democratic-Republican}} |[[Hiram M. Curry]] <small>(DR)</small>
| rowspan=10 {{Party shading/Democratic-Republican}}|4DR
| rowspan=10 {{Party shading/Democratic-Republican}} |[[Benjamin Ruggles]] <small>(DR)</small>
|rowspan=9 {{Party shading/Democratic-Republican}}|[[James Monroe]]/<br/>[[Daniel D. Tompkins]] <small>(DR)</small> {{Aye}}
|- style="height:2em"
!1817
|- style="height:2em"
!1818
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Ethan Allen Brown]] <small>(DR)</small>{{efn|name=res-senate}}
|- style="height:2em"
!1819
|rowspan=3 {{Party shading/Democratic-Republican}}|[[William A. Trimble]] <small>(DR)</small>
|- style="height:2em"
!1820
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Samuel Sullivan (politician)|Samuel Sullivan]] <small>(DR)</small>
|- style="height:2em"
!1821
|- style="height:2em"
!rowspan=2|1822
|{{Party shading/Federalist}}|[[Allen Trimble]] <small>(F)</small>{{efn|name=speaker-acted}}
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Ethan Allen Brown]] <small>(DR)</small>
|- style="height:2em"
|rowspan=4 {{Party shading/Democratic-Republican}}|[[Jeremiah Morrow]] <small>(DR)</small>
|- style="height:2em"
!1823
|rowspan=12 {{Party shading/Democratic-Republican}}|[[Henry Brown (Ohio politician)|Henry Brown]] <small>(DR)</small>
|rowspan=2 {{Party shading/National Republican}}|10NR, 2J, 2DR
|- style="height:2em"
!1824
| rowspan=4 {{Party shading/Democratic-Republican}} |[[Henry Clay]]/<br/>[[Nathan Sanford]] <small>(DR)</small> {{Nay}}
|- style="height:2em"
!1825
|{{dm|?|date=July 2021}}
|{{dm|?|date=July 2021}}
| rowspan=5 {{Party shading/National Republican}}|4NR
| rowspan=8 {{Party shading/National Republican}}|[[Benjamin Ruggles]] <small>(NR)</small>
|rowspan=3 {{Party shading/National Republican}}|[[William Henry Harrison]] <small>(NR)</small>
|rowspan=2 {{Party shading/National Republican}}|12NR, 2J
|- style="height:2em"
!1826
|rowspan=4 {{Party shading/National Republican}}|[[Allen Trimble]] <small>(NR)</small>{{efn|[[Allen Trimble]] ran as a Federalist in 1822 and [[National Republican Party|National Republican]] in 1826.<ref>{{cite book |title=The Democratic party of the state of Ohio: a comprehensive history |volume= 1 |editor-first=Thomas Edward |editor-last=Powell |editor-link=Thomas E. Powell|publisher=The Ohio Publishing Company |year=1913 |page=67 |url=https://books.google.com/books?id=Y14PAAAAYAAJ&pg=PA67}}</ref>}}
|{{dm|?|date=July 2021}}
|{{dm|?|date=July 2021}}
|- style="height:2em"
!1827
|{{dm|?|date=July 2021}}
|{{dm|?|date=July 2021}}
|rowspan=2 {{Party shading/National Republican}}|12NR, 2J
|- style="height:2em"
!1828
|{{Party shading/National Republican}}|22NR, 13J
|{{Party shading/National Republican}}|44NR, 28J
|rowspan=4 {{Party shading/National Republican}}|[[Jacob Burnet]] <small>(NR)</small>
|rowspan=4  {{Party shading/Democratic}}| [[Andrew Jackson]]/<br/>[[John C. Calhoun]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1829
|{{Party shading/National Republican}}|19NR, 17J
|{{Party shading/National Republican}}|38NR, 34J
|rowspan=2 {{Party shading/Jacksonian}}|8J, 6NR
|- style="height:2em"
!1830
|rowspan=2 {{Party shading/National Republican}}|[[Duncan McArthur]] <small>(NR)</small>
|{{Party shading/Jacksonian}}|21J, 15NR
|{{Party shading/Jacksonian}}|37J, 32NR, 3?
|{{Party shading/Tie}}|2NR, 2J
|- style="height:2em"
!1831
| rowspan=4 {{Party shading/Whig}} |[[Moses H. Kirby]] <small>(NR)</small>
|{{Party shading/Democratic}}|18D, 18W{{efn|A Democrat, Samuel R. Miller, was elected as Speaker of the Senate.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=277}}</ref>}}
|{{Party shading/National Republican}}|38NR, 29D, {{nowrap|5{{Abbr|A-C|Anti-coalition}}}}
| rowspan=2 {{Party shading/National Republican}}|3NR, 1J
|rowspan=2 {{Party shading/National Republican}}|8NR, 6J
|- style="height:2em"
!1832
|rowspan=4 {{Party shading/Democratic}}|[[Robert Lucas (governor)|Robert Lucas]] <small>(D)</small>
|{{Party shading/National Republican}}|20NR, 16D
|{{Party shading/National Republican}}|42NR, 30D
|rowspan=5 {{Party shading/National Republican}}|[[Thomas Ewing]] <small>(NR)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Andrew Jackson]]/<br/>[[Martin Van Buren]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1833
|rowspan=6 {{Party shading/Democratic}}|[[John A. Bryan]] <small>(D)</small>
|{{Party shading/Democratic}}|19D, 17W
|{{Party shading/Democratic}}|39D, 31W, 2?
| rowspan=2 {{Party shading/Tie}}|2NR, 2D
| rowspan=4 {{Party shading/Jacksonian}} |[[Thomas Morris (Ohio politician)|Thomas Morris]] <small>(J)</small>
|rowspan=2 {{Party shading/Democratic}}|11D, 6NR, {{nowrap|2A-M}}
|- style="height:2em"
!1834
|{{Party shading/Democratic}}|22D, 14NR
|{{Party shading/Democratic}}|46D, 26NR
|- style="height:2em"
!1835
|{{Party shading/Democratic}}|[[Benjamin B. Hinkson]] <small>(D)</small>
| rowspan=12 {{Party shading/Whig}} |[[Joseph Whitehill]] <small>(W)</small> 
|{{Party shading/Democratic}}|19D, 17W{{efn|A Whig, [[Peter Hitchcock (judge)|Peter Hitchcock]], was elected as a minority-party Speaker of the Senate at organization. Another Whig, [[Charles Anthony (politician)|Charles Anthony]], was elected as a minority-party Speaker after Hitchcock resigned in March. In a special session in June concerning the [[Toledo War]], a Democrat, [[David Disney]], was elected as Speaker.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|pages=274, 276}}</ref>}}
|{{Party shading/Whig}}|42W, 29D, 1?
|{{Party shading/Whig}}|3W, 1D
|rowspan=2 {{Party shading/Tie}}|9D, 9W, {{nowrap|1A-M}}
|- style="height:2em"
!1836
|rowspan=2 {{Party shading/Whig}}|[[Joseph Vance (Ohio politician)|Joseph Vance]] <small>(W)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Carter B. Harlan]] <small>(D)</small>
|{{Party shading/Democratic}}|20D, 16W
|{{Party shading/Democratic}}|46D, 26W
| rowspan=6 {{Party shading/Tie}}|2D, 2W
|rowspan=4  {{Party shading/Whig}}|[[William Henry Harrison]]/<br/>[[Francis Granger]] <small>(W)</small> {{Nay}}
|- style="height:2em"
!1837
|{{Party shading/Whig}}|20W, 16D{{efn|Democrat [[Elijah Vance]] was re-elected as a minority-party Speaker of the Senate.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=277}}</ref>}}
|{{Party shading/Democratic}}|37D, 35W
| rowspan=2 {{Party shading/Democratic}}|[[Thomas Morris (Ohio politician)|Thomas Morris]] <small>(D)</small>
| rowspan=10 {{Party shading/Democratic}} |[[William Allen (governor)|William Allen]] <small>(D)</small>
|rowspan=2 {{Party shading/Whig}}|11W, 8D
|- style="height:2em"
!1838
|rowspan=2 {{Party shading/Democratic}}|[[Wilson Shannon]] <small>(D)</small>
|{{Party shading/Whig}}|20W, 16D
|{{Party shading/Whig}}|40W, 32D
|- style="height:2em"
!1839
|rowspan=7 {{Party shading/Democratic}}|[[John Brough]] <small>(D)</small>
|{{Party shading/Democratic}}|19D, 17W
|{{Party shading/Democratic}}|38D, 34W
| rowspan=8 {{Party shading/Democratic}}|[[Benjamin Tappan]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|11D, 8W
|- style="height:2em"
!1840
|rowspan=2 {{Party shading/Whig}}|[[Thomas Corwin]] <small>(W)</small>
|{{Party shading/Democratic}}|[[William Trevitt]] <small>(D)</small>
|{{Party shading/Democratic}}|25D, 11W
|{{Party shading/Democratic}}|48D, 24W
| rowspan=4 {{Party shading/Whig}} |[[William Henry Harrison]]/<br/>[[John Tyler]] <small>(W)</small> {{Aye}}
|- style="height:2em"
!1841
|rowspan=3 {{Party shading/Whig}}|[[John Sloane (Ohio politician)|John Sloane]] <small>(W)</small>
|{{Party shading/Democratic}}|22D, 14W
|{{Party shading/Whig}}|51W, 21D
|rowspan=2 {{Party shading/Whig}}|12W, 7D
|- style="height:2em"
!1842
|rowspan=2 {{Party shading/Democratic}}|[[Wilson Shannon]] <small>(D)</small>{{efn|Resigned to become [[United States Ambassador to Mexico|United States minister to Mexico]].}}
|{{Party shading/Democratic}}|19D, 17W
|{{Party shading/Democratic}}|37D, 35W
| rowspan=5 {{Party shading/Democratic}}|3D, 1W
|- style="height:2em"
!1843
|{{Party shading/Democratic}}|22D, 14W
|{{Party shading/Democratic}}|39D, 33W
|rowspan=3 {{Party shading/Democratic}}|12D, 9W
|- style="height:2em"
!rowspan=2|1844
|{{Party shading/Democratic}}|[[Thomas W. Bartley]] <small>(D)</small>{{efn|name=speaker-acted}}
| rowspan=3 {{Party shading/Whig}} |[[Samuel Galloway]] <small>(W)</small>
|rowspan=2 {{Party shading/Democratic}}|20D, 16W
|rowspan=2 {{Party shading/Whig}}|38W, 34D
| rowspan=3 {{Party shading/Whig}} |[[Henry Clay]]/<br/>[[Theodore Frelinghuysen]] <small>(W)</small> {{Nay}}
|- style="height:2em"
|rowspan=2 {{Party shading/Whig}}|[[Mordecai Bartley]] <small>(W)</small>
|- style="height:2em"
!1845
| {{Party shading/Whig}} |[[John Woods (Ohio politician)|John Woods]] <small>(W)</small>
|{{Party shading/Whig}}|22W, 14D
|{{Party shading/Whig}}|41W, 31D
| {{Party shading/Democratic}} |13D, 8W
|}

==1846–present==
{{sticky header}}
{| class="wikitable sortable sticky-header-multi" style="text-align:center"
!rowspan=2 class=unsortable |Year!!colspan=6|Executive offices!!colspan=2|[[Ohio General Assembly|State Legislature]]!! rowspan=2 class=unsortable |[[Supreme Court of Ohio|Ohio<br/>Supreme<br/>Court]]!!colspan=3|[[United States congressional delegations from Ohio|United States Congress]]!!rowspan=2 class=unsortable |[[United States presidential election|Electoral votes]]
|- style="height:2em"
! class=unsortable |[[List of governors of Ohio|Governor]]!! class=unsortable |[[Lieutenant Governor of Ohio|Lt. Governor]]!! class=unsortable |[[Ohio Attorney General|Attorney General]]!! class=unsortable |[[Ohio Secretary of State|Secretary of State]]!! class=unsortable |[[Ohio State Treasurer|Treasurer]]!! class=unsortable |[[Ohio State Auditor|Auditor]]!! class=unsortable |[[Ohio Senate|Senate]]!! class=unsortable |[[Ohio House of Representatives|House]]!! class=unsortable |[[List of United States senators from Ohio|Senator<br/>(Class I)]]!! class=unsortable |[[List of United States senators from Ohio|Senator<br/>(Class III)]]!! class=unsortable |[[List of United States representatives from Ohio|House]]
|- style="height:2em"
!1846
|rowspan=3 {{Party shading/Whig}}|[[William Bebb]] <small>(W)</small>{{efn|name=bebb|Bebb's term officially ended in December 1848. However, due to the large number of close elections that year, the General Assembly was delayed in qualifying governor-elect [[Seabury Ford]], and Bebb remained in office for an extra few weeks.}}
| rowspan=6 |''no such<br/>office''
|rowspan=5 {{Party shading/Whig}}|[[Henry Stanbery]] <small>(W)</small>
| rowspan=4 {{Party shading/Whig}}|[[Samuel Galloway]] <small>(W)</small>
|{{Party shading/Whig}}|[[Joseph Whitehill]] <small>(W)</small>
| rowspan=6 {{Party shading/Whig}}|[[John Woods (Ohio politician)|John Woods]] <small>(W)</small>
|{{Party shading/Whig}}|21W, 15D
|{{Party shading/Whig}}|44W, 28D
|{{Party shading/Democratic}}|3D, 1W
|rowspan=4 {{Party shading/Whig}}|[[Thomas Corwin]] <small>(W)</small>
| rowspan=4 {{Party shading/Democratic}}|[[William Allen (governor)|William Allen]] <small>(D)</small>
|{{Party shading/Democratic}}|13D, 8W
| rowspan=2 |
|- style="height:2em"
!1847
|rowspan=5 {{Party shading/Whig}}|[[Albert A. Bliss]] <small>(W)</small>
|{{Party shading/Democratic}}|18D, 18W{{efn|A Democrat, Brewster Randall, was chosen as Speaker of the Senate on the 1st Ballot.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=301}}</ref>}}
|{{Party shading/Whig}}|39W, 32D, 1I
|rowspan=4 {{Party shading/Tie}}|2D, 2W
|rowspan=2 {{Party shading/Whig}}|11W, 10D
|- style="height:2em"
!1848
|{{Party shading/Whig}}|19W, 17D
|{{Party shading/Whig}}|40W, 32D
|rowspan=4 {{Party shading/Democratic}}|[[Lewis Cass|Cass]]/<br/>[[William O. Butler|Butler]] <small>(D)</small> {{Nay}}
|- style="height:2em"
!1849
|{{Party shading/Whig}}|[[Seabury Ford]] <small>(W)</small>{{efn|name=bebb}}
|{{Party shading/Whig}}|18W, 18D{{efn|A Free Soiler who ran on the Whig ticket, Brewster Randall, was chosen as Speaker of the Senate on the 16th Ballot.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=306}}</ref>}}
|{{Party shading/Whig}}|37W, 35D{{efn|A Democrat, [[John G. Breslin]], was elected as a minority-party Speaker on the 3rd Ballot.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=309}}</ref>}}
|rowspan=2 {{Party shading/Democratic}}|11D, 8W, 2FS
|- style="height:2em"
!1850
|rowspan=3 {{Party shading/Democratic}}|[[Reuben Wood]] <small>(D)</small>{{efn|Wood's first term was truncated to one year, due to the 1851 constitution's moving elections one year back to odd-numbered years; resigned to become [[consul (representative)|consul]] in [[Valparaíso]], [[Chile]].}}
|rowspan=2 {{Party shading/Free Soil}}|[[Henry W. King]] <small>(FS)</small>
|{{Party shading/Whig}}|16W, 16D, 4FS{{efn|A Whig, [[Harrison G. O. Blake]], was chosen as Speaker of the Senate on the 301st Ballot.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=312}}</ref>}}
|{{Party shading/Whig}}|36W, 29D, 7FS{{efn|A Democrat, [[Benjamin F. Leiter]], was elected as a minority-party Speaker on the 10th Ballot.<ref>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=314}}</ref>}}
|{{Party shading/Whig}}|[[Thomas Ewing]] <small>(W)</small>
|rowspan=6 {{Party shading/Free Soil}}|[[Salmon P. Chase]] <small>(FS)</small>
|- style="height:2em"
!1851
|{{Party shading/Democratic}}|[[Joseph McCormick (Ohio lawyer)|Joseph McCormick]] <small>(D)</small>
|{{Party shading/Whig}}|17W, 16D, 3FS{{efn|A Whig, [[Charles Cleveland Convers]], was elected as Speaker of the Senate in coalition with the Free Soilers on the 14th Ballot.<ref name=p315>{{Cite book|last=Ohio|url=https://books.google.com/books?id=Z5tEAQAAMAAJ|title=Message and Annual Reports for ..., Made to the ... General Assembly of Ohio ..|date=1876|publisher=Richard Nevins, state printer|language=en|page=315}}</ref>}}
|{{Party shading/Whig}}|34W, 32D, 6FS{{efn|A Free Soiler, [[John F. Morse]], was elected as Speaker in coalition with the Democrats on the 11th Ballot.<ref name=p315/>}}
|{{Party shading/Democratic}}|3D, 1W
| rowspan=5 {{Party shading/Whig}} |[[Benjamin Wade]] <small>(W)</small>
|rowspan=2 {{Party shading/Democratic}}|11D, 9W, 1FS
|- style="height:2em"
!1852
|{{Party shading/Democratic}}|[[William Medill]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[George E. Pugh]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[William Trevitt]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[John G. Breslin]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[William Duane Morgan]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|24D, 9W, 1FS{{efn|name=2yr|Due to the approval of the [[Constitution of Ohio|Ohio Constitution of 1851]], legislators began to serve two-year terms.}}
|rowspan=2 {{Party shading/Democratic}}|65D, 28W, 1FS{{efn|name=2yr}}
|rowspan=3 {{Party shading/Democratic}}|5D
|rowspan=4 {{Party shading/Democratic}}|[[Franklin Pierce|Pierce]]/<br/>[[William R. King|King]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1853
|rowspan=3 {{Party shading/Democratic}}|[[William Medill]] <small>(D)</small>{{efn|name=lt-elected|As lieutenant governor, filled unexpired term, and was later elected in his own right.}}
|rowspan=3 {{Party shading/Democratic}}|[[James Myers (politician)|James Myers]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|12D, 7W, 2FS
|- style="height:2em"
!1854
|rowspan=2 {{Party shading/Democratic}}|[[George Wythe McCook|George McCook]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|26D, 7W
|rowspan=2 {{Party shading/Democratic}}|70D, 17W, 9FS
|- style="height:2em"
!1855
|{{Party shading/Democratic}}|4D, 1R
|rowspan=2 {{Party shading/Republican}}|21 A-Neb.
|- style="height:2em"
!1856
|rowspan=4 {{Party shading/Republican}}|[[Salmon P. Chase]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Thomas H. Ford]] <small>(R)</small><ref>[[#smith1898|Smith 1898]] : 40</ref>
|{{Party shading/Republican}}|[[Francis D. Kimball]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[James H. Baker (politician)|James H. Baker]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[William Harvey Gibson|William H. Gibson]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Francis Mastin Wright|Francis M. Wright]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|29R, 6D
|rowspan=2 {{Party shading/Republican}}|78R, 34D
|{{Party shading/Republican}}|3R, 2D
| rowspan=14 {{Party shading/Republican}} |[[Benjamin Wade]] <small>(R)</small>
| rowspan=5 {{Party shading/Democratic}} |[[George E. Pugh]] <small>(D)</small>
|rowspan=4 {{Party shading/Republican}}|[[John C. Frémont|Frémont]]/<br/>[[William L. Dayton|Dayton]] <small>(R)</small> {{Nay}}
|- style="height:2em"
!1857
|rowspan=4 {{Party shading/Republican}}|[[Christopher Wolcott]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|4R, 1D
|rowspan=2 {{Party shading/Republican}}|13R, 8D
|- style="height:2em"
!1858
|rowspan=2 {{Party shading/Republican}}|[[Martin Welker]] <small>(R)</small><ref>[[#smith1898|Smith 1898]] : 74</ref>
| rowspan=5 {{Party shading/Republican}} |[[Addison Peale Russell]] <small>(R)</small>
| rowspan=5 {{Party shading/Republican}} |[[Alfred P. Stone]] <small>(R)</small>
|rowspan=2 {{Party shading/Democratic}}|20D, 13R
|rowspan=2 {{Party shading/Democratic}}|62D, 44R, 1I
|- style="height:2em"
!1859
| rowspan=5 {{Party shading/Republican}} |5R
| rowspan=3 {{Party shading/Republican}} |15R, 6D
|- style="height:2em"
!1860
| rowspan=3 {{Party shading/Republican}} |[[William Dennison Jr.]] <small>(R)</small>
| rowspan=3 {{Party shading/Republican}} |[[Robert C. Kirk]] <small>(R)</small>
| rowspan=4 {{Party shading/Republican}} |[[Robert Walker Tayler Sr.]] <small>(R)</small>
| rowspan=3 {{Party shading/Republican}} |25R, 10D
| rowspan=3 {{Party shading/Republican}} |58R, 46D, 1I
| rowspan=5 {{Party shading/Republican}} |[[Abraham Lincoln|Lincoln]]/<br/>[[Hannibal Hamlin|Hamlin]] <small>(R)</small> {{Aye}}
|- style="height:2em"
! rowspan=2 |1861
| rowspan=3 {{Party shading/Republican}}|[[James Murray (Ohio politician)|James Murray]] <small>(R)</small>
|{{Party shading/Republican}}|[[Salmon P. Chase]] <small>(R)</small>
|- style="height:2em"
| rowspan=16 {{Party shading/Republican}} |[[John Sherman]] <small>(R)</small>
| rowspan=2 {{Party shading/Republican}} |13R, 8D
|- style="height:2em"
!1862
|rowspan=2 {{Party shading/Republican}}|[[David Tod]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Benjamin Stanton]] <small>(R)</small>
|{{Party shading/Republican}}|[[Benjamin R. Cowen]] <small>(R)</small>
|rowspan=3 {{Party shading/Republican}}|[[G. V. Dorsey]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|26R, 8D
|rowspan=2 {{Party shading/Republican}}|74R, 23D
|- style="height:2em"
!1863
|rowspan=2 {{Party shading/Democratic}}|[[Lyman R. Critchfield]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[William W. Armstrong (journalist)|William W. Armstrong]] <small>(D)</small>
|{{Party shading/Republican}}|[[Oviatt Cole]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|4R, 1D
|rowspan=2 {{Party shading/Democratic}}|14D, 5R
|- style="height:2em"
!1864
|{{Party shading/Republican}}|[[John Brough]] <small>(R)</small>{{efn|name=died|Died in office.}}
|{{Party shading/Republican}}|[[Charles Anderson (governor)|Charles Anderson]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[James H. Godman]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|30R, 4D
|rowspan=2 {{Party shading/Republican}}|76R, 21D
|rowspan=4 {{Party shading/National Union}}|[[Abraham Lincoln|Lincoln]]/<br/>[[Andrew Johnson|Johnson]] <small>(NU)</small> {{Aye}}
|- style="height:2em"
!1865
|{{Party shading/Republican}}|[[Charles Anderson (governor)|Charles Anderson]] <small>(R)</small>{{efn|name=lt-filled|As lieutenant governor, filled unexpired term.}}
|''vacant''
|{{Party shading/Republican}}|[[William P. Richardson (Ohio politician)|William P. Richardson]] <small>(R)</small>
|rowspan=3 {{Party shading/Republican}}|[[William Henry Smith (American politician)|William Henry Smith]] <small>(R)</small>
|{{Party shading/Republican}}|[[William Hooper (Ohio businessman)|William Hooper]] <small>(R)</small>
|rowspan=10 {{Party shading/Republican}}|5R
|rowspan=2 {{Party shading/Republican}}|17R, 2D
|- style="height:2em"
!1866
|rowspan=2 {{Party shading/Republican}}|[[Jacob Dolson Cox]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Andrew McBurney]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[William H. West (judge)|William H. West]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|[[S. S. Warner]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|25R, 12D
|rowspan=2 {{Party shading/Republican}}|71R, 34D
|- style="height:2em"
!1867
|rowspan=2 {{Party shading/Republican}}|16R, 3D
|- style="height:2em"
!1868
|rowspan=4 {{Party shading/Republican}}|[[Rutherford B. Hayes]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[John C. Lee]] <small>(R)</small>
|{{Party shading/Republican}}|[[John Russell (Ohio politician)|John Russell]] <small>(R)</small>
|rowspan=2 {{Party shading/Democratic}}|18D, 17R
|rowspan=2 {{Party shading/Democratic}}|56D, 49R
|rowspan=4 {{Party shading/Republican}}|[[Ulysses S. Grant|Grant]]/<br/>[[Schuyler Colfax|Colfax]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1869
|rowspan=4 {{Party shading/Republican}}|[[Isaac R. Sherwood]] <small>(R)</small>
|rowspan=12 {{Party shading/Democratic}}|[[Allen G. Thurman]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|13R, 6D
|- style="height:2em"
!1870
|rowspan=4 {{Party shading/Republican}}|[[Francis Bates Pond]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|19R, 18D
|rowspan=2 {{Party shading/Republican}}|57R, 54D
|- style="height:2em"
!1871
|rowspan=2 {{Party shading/Republican}}|14R, 5D
|- style="height:2em"
!1872
|rowspan=2 {{Party shading/Republican}}|[[Edward Follansbee Noyes|Edward F. Noyes]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Jacob Mueller]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Isaac Welsh]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[James Williams (Ohio politician)|James Williams]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|18R, 18D{{efn|Though the Senate was tied, the Republicans had control of the Senate Presidency due to the tie-breaking vote of the Lt. Governor.<ref>{{Cite book|last1=Taylor|first1=William Alexander|url=https://books.google.com/books?id=OioWAAAAYAAJ|title=Ohio Statesmen and Annals of Progress: From the Year 1788 to the Year 1900 ...|last2=Taylor|first2=Aubrey Clarence|date=1899|publisher=Press of the Westbote Company|language=en}}</ref>}}
|rowspan=2 {{Party shading/Republican}}|57R, 48D
|rowspan=4 {{Party shading/Republican}}|[[Ulysses S. Grant|Grant]]/<br/>[[Henry Wilson|Wilson]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1873
|rowspan=2 {{Party shading/Republican}}|[[Allen T. Wikoff]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|14R, 6D
|- style="height:2em"
!1874
|rowspan=2 {{Party shading/Democratic}}|[[William Allen (governor)|William Allen]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|[[Alphonso Hart]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[John Little (congressman)|John Little]] <small>(R)</small>
|rowspan=2 {{Party shading/Democratic}}|22D, 14R
|rowspan=2 {{Party shading/Democratic}}|58D, 44R, 3I
|- style="height:2em"
!1875
|rowspan=2 {{Party shading/Democratic}}|[[William Bell Jr. (politician)|William Bell Jr.]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|3R, 2D
|rowspan=2 {{Party shading/Democratic}}|13D, 7R
|- style="height:2em"
!1876
|{{Party shading/Republican}}|[[Rutherford B. Hayes]] <small>(R)</small>{{efn|name=pres|Resigned to become [[president of the United States]].}}
|{{Party shading/Republican}}|[[Thomas L. Young]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[John M. Millikin]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|20R, 17D
|rowspan=2 {{Party shading/Republican}}|65R, 46D
|rowspan=4  {{Party shading/Republican}}|[[Rutherford B. Hayes|Hayes]]/<br/>[[William A. Wheeler|Wheeler]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1877
|{{Party shading/Republican}}|[[Thomas L. Young]] <small>(R)</small>{{efn|name=lt-filled}}
|{{Party shading/Republican}}|[[H. W. Curtiss]] <small>(R)</small>{{efn|name=acting|Acting.}}
|rowspan=4 {{Party shading/Republican}}|[[Milton Barnes (politician)|Milton Barnes]] <small>(R)</small>
|{{Party shading/Republican}}|4R, 1D
|rowspan=2 {{Party shading/Republican}}|[[Stanley Matthews (judge)|Stanley Matthews]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|12R, 8D
|- style="height:2em"
!1878
|rowspan=2 {{Party shading/Democratic}}|[[Richard M. Bishop]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Jabez W. Fitch]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Isaiah Pillars]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Anthony Howells]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|25D, 10R
|rowspan=2 {{Party shading/Democratic}}|68D, 38R, 3G
|rowspan=2 {{Party shading/Republican}}|3R, 2D
|- style="height:2em"
!1879
|rowspan=6 {{Party shading/Democratic}}|[[George H. Pendleton]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|11D, 9R
|- style="height:2em"
!1880
|rowspan=4 {{Party shading/Republican}}|[[Charles Foster (Ohio politician)|Charles Foster]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Andrew Hickenlooper]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[George K. Nash]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Joseph Turney]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[John F. Oglevee]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|23R, 14D
|rowspan=2 {{Party shading/Republican}}|69R, 45D
|rowspan=4 {{Party shading/Republican}}|4R, 1D
|rowspan=4 {{Party shading/Republican}}|[[James A. Garfield|Garfield]]/<br/>[[Chester A. Arthur|Arthur]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1881
|rowspan=2 {{Party shading/Republican}}|[[Charles Townsend (Ohio politician)|Charles Townsend]] <small>(R)</small>
|rowspan=17 {{Party shading/Republican}}|[[John Sherman]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|15R, 5D
|- style="height:2em"
!1882
|rowspan=2 {{Party shading/Republican}}|[[Rees G. Richards]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|22R, 11D
|rowspan=2 {{Party shading/Republican}}|70R, 35D
|- style="height:2em"
!1883
|rowspan=2 {{Party shading/Democratic}}|[[James W. Newman]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|13D, 8R
|- style="height:2em"
!1884
|rowspan=2 {{Party shading/Democratic}}|[[George Hoadly]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[John G. Warwick]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[James Lawrence (Ohio politician)|James Lawrence]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Peter Brady (politician)|Peter Brady]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Emil Kiesewetter]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|22D, 11R
|rowspan=2 {{Party shading/Democratic}}|60D, 45R
|rowspan=2 {{Party shading/Democratic}}|3D, 2R
|rowspan=4 {{Party shading/Republican}}|[[James G. Blaine|Blaine]]/<br/>[[John A. Logan|Logan]] <small>(R)</small> {{Nay}}
|- style="height:2em"
!1885
|rowspan=4 {{Party shading/Republican}}|[[James S. Robinson]] <small>(R)</small>
|rowspan=7 {{Party shading/Democratic}}|[[Henry B. Payne]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|11D, 10R
|- style="height:2em"
!1886
|rowspan=4 {{Party shading/Republican}}|[[Joseph B. Foraker]] <small>(R)</small>
|{{Party shading/Republican}}|[[Robert P. Kennedy]] <small>(R)</small>{{efn|Elected to [[United States House of Representatives]] representing [[Ohio's 8th congressional district]].}}
|rowspan=2 {{Party shading/Republican}}|[[Jacob A. Kohler]] <small>(R)</small>
|rowspan=7 {{Party shading/Republican}}|[[John C. Brown (Ohio politician)|John C. Brown]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|21R, 16D{{efn|There was a contest over four seats from [[Hamilton County, Ohio|Hamilton County]] and whether the Democrats or Republicans won them. The Democrats initially claimed the Senate Presidency under [[John O'Neill (congressman)|John O'Neill]]. After a compromise was worked out on not seating the four Democrats being contested, the 15 of the other 16 Democrats left the chamber, leaving it short of a quorum of 19. Some days later, a motion was made on the floor to accept the four Republicans, and it was granted. This allowed the Republicans to choose [[Silas A. Conrad]] as President pro tempore, and to organize and control the chamber.<ref>{{Cite book|last1=Taylor|first1=William Alexander|url=https://archive.org/details/ohiostatesmenann00taylrich|title=Ohio statesmen and annals of progress, from the year 1788 to the year 1900 ..|last2=Taylor|first2=Aubrey Clarence|date=1899|publisher=Columbus, Ohio, Press of the Westbote Co.|others=University of California Libraries}}</ref>}}
|rowspan=2 {{Party shading/Republican}}|68R, 42D
|{{Party shading/Republican}}|3R, 2D
|- style="height:2em"
!1887
|{{Party shading/Republican}}|[[Silas A. Conrad]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|4R, 1D
|rowspan=2 {{Party shading/Republican}}|15R, 6D
|- style="height:2em"
!1888
|rowspan=2 {{Party shading/Republican}}|[[William C. Lyon]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|[[David K. Watson]] <small>(R)</small>
|rowspan=9 {{Party shading/Republican}}|[[Ebenezer W. Poe]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|25R, 11D
|rowspan=2 {{Party shading/Republican}}|65R, 45D
|rowspan=5 {{Party shading/Republican}}|[[Benjamin Harrison|Harrison]]/<br/>[[Levi P. Morton|Morton]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1889
|rowspan=4 {{Party shading/Republican}}|[[Daniel J. Ryan]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|5R
|rowspan=3 {{Party shading/Republican}}|16R, 5D
|- style="height:2em"
!rowspan=2|1890
|rowspan=3 {{Party shading/Democratic}}|[[James E. Campbell]] <small>(D)</small>
|{{Party shading/Republican}}|[[Elbert L. Lampson]] <small>(R)</small>
|rowspan=3 {{Party shading/Democratic}}|19D, 17R
|rowspan=3 {{Party shading/Democratic}}|60D, 54R
|- style="height:2em"
|rowspan=2 {{Party shading/Democratic}}|[[William V. Marquis]] <small>(D)</small>
|- style="height:2em"
!1891
|rowspan=7 {{Party shading/Democratic}}|[[Calvin S. Brice]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|14D, 7R
|- style="height:2em"
!1892
|rowspan=4 {{Party shading/Republican}}|[[William McKinley]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Andrew L. Harris]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[John K. Richards]] <small>(R)</small>
|{{Party shading/Republican}}|[[Christian L. Poorman]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[William T. Cope]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|21R, 10D
|rowspan=2 {{Party shading/Republican}}|72R, 35D
|rowspan=4 {{Party shading/Republican}}|[[Benjamin Harrison|Harrison]]/<br/>[[Whitelaw Reid|Reid]] <small>(R)</small> {{Nay}}{{efn|Grover Cleveland and Adlai Stevenson I <small>(D)</small> also carried 1 of Ohio's 23 electoral votes due to a faithless elector.}}
|- style="height:2em"
!1893
|rowspan=4 {{Party shading/Republican}}|[[Samuel McIntire Taylor]] <small>(R)</small>
|rowspan=20 {{Party shading/Republican}}|6R
|rowspan=2 {{Party shading/Democratic}}|11D, 10R
|- style="height:2em"
!1894
|rowspan=2 {{Party shading/Republican}}|26R, 5D
|rowspan=2 {{Party shading/Republican}}|85R, 22D
|- style="height:2em"
!1895
|rowspan=2 {{Party shading/Republican}}|19R, 2D
|- style="height:2em"
!1896
|rowspan=4 {{Party shading/Republican}}|[[Asa S. Bushnell]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Asa W. Jones]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Frank S. Monnett]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Samuel B. Campbell]] <small>(R)</small>
|rowspan=15 {{Party shading/Republican}}|[[Walter D. Guilbert]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|30R, 6D, 1P
|rowspan=2 {{Party shading/Republican}}|87R, 25D
|rowspan=4 {{Party shading/Republican}}|[[William McKinley|McKinley]]/<br/>[[Garret Hobart|Hobart]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1897
|rowspan=4 {{Party shading/Republican}}|[[Charles Kinney]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[Mark Hanna]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|15R, 6D
|- style="height:2em"
!1898
|rowspan=2 {{Party shading/Democratic}}|18D, 17R, 1IR{{efn|The Independent Republican voted to give the Democrats control of the Senate Presidency and the chamber.<ref>{{Cite book|url=https://books.google.com/books?id=V-clAAAAMAAJ|title=The Biographical Annals of Ohio, 1902-: A Handbook of the Government and Institutions of the State of Ohio. v. 1-|date=1898|language=en}}</ref>}}
|rowspan=2 {{Party shading/Republican}}|62R, 47D
|rowspan=13 {{Party shading/Republican}}|[[Joseph B. Foraker]] <small>(R)</small>
|- style="height:2em"
!1899
|- style="height:2em"
!1900
|rowspan=5 {{Party shading/Republican}}|[[George K. Nash]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[John A. Caldwell]]
|rowspan=5 {{Party shading/Republican}}|[[John M. Sheets]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|[[Isaac B. Cameron]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|19R, 11D, 1IR
|rowspan=2 {{Party shading/Republican}}|62R, 45D, 3IR
|rowspan=5 {{Party shading/Republican}}|[[William McKinley|McKinley]]/<br/>[[Theodore Roosevelt|Roosevelt]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1901
|rowspan=8 {{Party shading/Republican}}|[[Lewis C. Laylin]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|17R, 4D
|- style="height:2em"
!rowspan=2|1902
|{{Party shading/Republican}}|[[Carl L. Nippert]] <small>(R)</small>
|rowspan=3 {{Party shading/Republican}}|21R, 12D
|rowspan=3 {{Party shading/Republican}}|68R, 42D
|- style="height:2em"
|rowspan=2 {{Party shading/Republican}}|[[Harry L. Gordon]] <small>(R)</small>
|- style="height:2em"
!1903
|- style="height:2em"
!1904
|rowspan=2 {{Party shading/Republican}}|[[Myron T. Herrick]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Warren G. Harding]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|[[Wade H. Ellis]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|[[William S. McKinnon]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|29R, 4D
|rowspan=2 {{Party shading/Republican}}|88R, 22D
|rowspan=8 {{Party shading/Republican}}|[[Charles W. F. Dick]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|[[Theodore Roosevelt|Roosevelt]]/<br/>[[Charles W. Fairbanks|Fairbanks]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1905
|rowspan=3 {{Party shading/Republican}}|20R, 1D
|- style="height:2em"
!rowspan=2|1906
|{{Party shading/Democratic}}|[[John M. Pattison]] <small>(D)</small>{{efn|name=died}}{{efn|name=pattison|A 1905 amendment to the state constitution shifted elections forward one year, to take place on even years; thus Pattison's term, completed by Lieutenant Governor Andrew L. Harris Harris, was extended to three years.}}
|{{Party shading/Republican}}|[[Andrew L. Harris]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|18D, 18R, 1I{{efn|The Independent voted to give the Democrats control of the Senate Presidency and the chamber.<ref>{{Cite book|url=https://books.google.com/books?id=V-clAAAAMAAJ|title=The Biographical Annals of Ohio, 1902-: A Handbook of the Government and Institutions of the State of Ohio. v. 1-|date=1898|language=en}}</ref>}}{{efn|name=3yr|Due to a state constitutional amendment, every legislator elected in 1905 served a three-year term, and would serve two-year terms afterward.}}
|rowspan=4 {{Party shading/Republican}}|62R, 75D, 2I{{efn|name=3yr}}
|- style="height:2em"
|rowspan=3 {{Party shading/Republican}}|[[Andrew L. Harris]] <small>(R)</small>{{efn|name=lt-filled}}{{efn|name=pattison}}
|rowspan=3|''vacant''
|- style="height:2em"
!1907
|rowspan=4 {{Party shading/Republican}}|[[Carmi Thompson]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|16R, 5D
|- style="height:2em"
!1908
|rowspan=4 {{Party shading/Republican}}|[[William Howard Taft|Taft]]/<br/>[[James S. Sherman|Sherman]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1909
|rowspan=4 {{Party shading/Democratic}}|[[Judson Harmon]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|[[Francis W. Treadway]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Ulysses G. Denman]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|[[David S. Creamer]] <small>(D)</small>
|rowspan=4 {{Party shading/Republican}}|[[Edward M. Fullington]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|20R, 14D
|rowspan=2 {{Party shading/Republican}}|71R, 45D, 1I
|rowspan=6 {{Party shading/Republican}}|[[Theodore E. Burton]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|13R, 8D
|- style="height:2em"
!1910
|- style="height:2em"
!1911
|{{Party shading/Democratic}}|[[Atlee Pomerene]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Timothy Sylvester Hogan (politician)|Timothy Hogan]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Charles H. Graves (Ohio politician)|Charles H. Graves]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|19D, 15R
|rowspan=2 {{Party shading/Democratic}}|70D, 49R
|rowspan=2 {{Party shading/Republican}}|4R, 2D
|rowspan=12 {{Party shading/Democratic}}|[[Atlee Pomerene]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|16D, 5R
|- style="height:2em"
!1912
|{{Party shading/Democratic}}|[[Hugh L. Nichols]] <small>(D)</small>
|rowspan=8 {{Party shading/Democratic}}|[[Woodrow Wilson|Wilson]]/<br/>[[Thomas R. Marshall|Marshall]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1913
|rowspan=2 {{Party shading/Democratic}}|[[James M. Cox]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[W. A. Greenlund]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[John P. Brennan]] <small>(D)</small>
|rowspan=8 {{Party shading/Democratic}}|[[Vic Donahey]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|26D, 7R
|rowspan=2 {{Party shading/Democratic}}|87D, 33R, 3Prog
|rowspan=2 {{Party shading/Democratic}}|5D, 2R
|rowspan=2 {{Party shading/Democratic}}|19D, 3R
|- style="height:2em"
!1914
|- style="height:2em"
!1915
|rowspan=2 {{Party shading/Republican}}|[[Frank B. Willis]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[John H. Arnold (politician)|John H. Arnold]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Edward C. Turner]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Charles Q. Hildebrant]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Rudolph W. Archer]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|20R, 13D
|rowspan=2 {{Party shading/Republican}}|72R, 50D, 1Prog
|rowspan=4 {{Party shading/Democratic}}|4D, 3R
|rowspan=6 {{Party shading/Republican}}|[[Warren G. Harding]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|13R, 9D
|- style="height:2em"
!1916
|- style="height:2em"
!1917
|rowspan=4 {{Party shading/Democratic}}|James M. Cox <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Earl D. Bloom]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Joseph McGhee]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[William D. Fulton]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Chester E. Bryan]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|25D, 11R
|rowspan=2 {{Party shading/Democratic}}|72D, 56R
|rowspan=2 {{Party shading/Democratic}}|13D, 9R
|- style="height:2em"
!1918
|- style="height:2em"
!1919
|rowspan=4 {{Party shading/Republican}}|[[Clarence J. Brown]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[John G. Price]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Harvey C. Smith]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Rudolph W. Archer]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|27R, 7D
|rowspan=2 {{Party shading/Republican}}|100R, 36D
|rowspan=2 {{Party shading/Republican}}|4R, 3D
|rowspan=2 {{Party shading/Republican}}|14R, 8D
|- style="height:2em"
!1920
|rowspan=4 {{Party shading/Republican}}|[[Warren G. Harding|Harding]]/<br/>[[Calvin Coolidge|Coolidge]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1921
|rowspan=2 {{Party shading/Republican}}|[[Harry L. Davis]] <small>(R)</small>
|rowspan=17 {{Party shading/Republican}}|[[Joseph T. Tracy]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|36R, 1D
|rowspan=2 {{Party shading/Republican}}|113R, 12D
|rowspan=12 {{Party shading/Republican}}|6R, 1D
|rowspan=7 {{Party shading/Republican}}|[[Frank B. Willis]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|22R
|- style="height:2em"
!1922
|- style="height:2em"
!1923
|rowspan=7 {{Party shading/Democratic}}|[[Vic Donahey]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Earl D. Bloom]] <small>(D)</small>
|rowspan=4 {{Party shading/Republican}}|[[Charles C. Crabbe]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Thad H. Brown]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Harry S. Day]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|31R, 4D
|rowspan=2 {{Party shading/Republican}}|103R, 27D
|rowspan=13 {{Party shading/Republican}}|[[Simeon D. Fess]] <small>(R)</small>
|rowspan=7 {{Party shading/Republican}}|16R, 6D
|- style="height:2em"
!1924
|rowspan=5 {{Party shading/Republican}}|[[Calvin Coolidge|Coolidge]]/<br/>[[Charles G. Dawes|Dawes]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1925
|rowspan=2 {{Party shading/Republican}}|[[Charles H. Lewis]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|33R, 2D
|rowspan=2 {{Party shading/Republican}}|110R, 20D
|- style="height:2em"
!1926
|- style="height:2em"
!1927
|{{Party shading/Democratic}}|[[Earl D. Bloom]] <small>(D)</small>
|rowspan=3 {{Party shading/Republican}}|[[Edward C. Turner]] <small>(R)</small>
|rowspan=7 {{Party shading/Republican}}|[[Clarence J. Brown]] <small>(R)</small>
|rowspan=3 {{Party shading/Republican}}|[[Bert B. Buckley]] <small>(R)</small>
|rowspan=3 {{Party shading/Republican}}|35R, 2D
|rowspan=3 {{Party shading/Republican}}|103R, 33D
|- style="height:2em"
!rowspan=2|1928
|{{Party shading/Democratic}}|[[William G. Pickrel]] <small>(D)</small>
|{{Party shading/Democratic}}|[[Cyrus Locher]] <small>(D)</small>
|- style="height:2em"
|{{Party shading/Republican}}|[[George C. Braden]] <small>(R)</small>
|{{Party shading/Republican}}|[[Theodore E. Burton]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Herbert Hoover|Hoover]]/<br/>[[Charles Curtis|Curtis]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1929
|rowspan=2 {{Party shading/Republican}}|[[Myers Y. Cooper]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[John T. Brown]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Gilbert Bettman]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[H. Ross Ake]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|31R
|rowspan=2 {{Party shading/Republican}}|122R, 11D
|{{Party shading/Republican}}|[[Roscoe C. McCulloch]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|19R, 3D
|- style="height:2em"
!1930
|rowspan=9 {{Party shading/Democratic}}|[[Robert J. Bulkley]] <small>(D)</small>
|- style="height:2em"
!1931
|rowspan=4 {{Party shading/Democratic}}|[[George White (Ohio politician)|George White]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[William G. Pickrel]] <small>(D)</small>
|rowspan=6 {{Party shading/Republican}}|[[Harry S. Day]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|18R, 14D
|rowspan=2 {{Party shading/Republican}}|70R, 58D
|rowspan=2 {{Party shading/Republican}}|13R, 9D
|- style="height:2em"
!1932
|{{Party shading/Republican}}|5R, 2D
|rowspan=8 {{Party shading/Democratic}}|[[Franklin D. Roosevelt|Roosevelt]]/<br/>[[John Nance Garner|Garner]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1933
|rowspan=2 {{Party shading/Democratic}}|[[Charles W. Sawyer]] <small>(D)</small>
|rowspan=4 {{Party shading/Republican}}|[[John W. Bricker]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|[[George S. Myers (judge)|George S. Myers]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|16D, 16R{{efn|Though the Senate was tied, the Democrats had control of the Senate Presidency due to the tie-breaking vote of the Lt. Governor.}}
|rowspan=2 {{Party shading/Democratic}}|84D, 51R
|{{Party shading/Republican}}|4R, 3D
|rowspan=4 {{Party shading/Democratic}}|18D, 6R
|- style="height:2em"
!1934
|{{Party shading/Democratic}}|5D, 2R
|- style="height:2em"
!1935
|rowspan=4 {{Party shading/Democratic}}|[[Martin L. Davey]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Harold G. Mosier]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|19D, 13R
|rowspan=2 {{Party shading/Republican}}|68R, 67D{{efn|Elected a Democratic Speaker.}}
|rowspan=3 {{Party shading/Republican}}|4R, 3D
|rowspan=6 {{Party shading/Democratic}}|[[Vic Donahey]] <small>(D)</small>
|- style="height:2em"
!1936
|- style="height:2em"
!1937
|rowspan=2 {{Party shading/Democratic}}|[[Paul P. Yoder]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Herbert S. Duffy]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[William Kennedy (Ohio politician)|William Kennedy]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Clarence H. Knisley]] <small>(D)</small>
|rowspan=16 {{Party shading/Democratic}}|[[Joseph T. Ferguson]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|31D, 5R
|rowspan=2 {{Party shading/Democratic}}|105D, 33R
|rowspan=2 {{Party shading/Democratic}}|21D, 3R
|- style="height:2em"
!1938
|{{Party shading/Democratic}}|4D, 3R
|- style="height:2em"
!1939
|rowspan=6 {{Party shading/Republican}}|[[John W. Bricker]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|[[Paul M. Herbert]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|[[Thomas J. Herbert]] <small>(R)</small>
|{{Party shading/Republican}}|[[Earl Griffith]] <small>(R)</small>
|rowspan=12 {{Party shading/Republican}}|[[Don H. Ebright]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|27R, 7D
|rowspan=2 {{Party shading/Republican}}|100R, 36D
|rowspan=2 {{Party shading/Republican}}|4R, 3D
|rowspan=14 {{Party shading/Republican}}|[[Robert A. Taft]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|15R, 9D
|- style="height:2em"
!1940
|{{Party shading/Republican}}|[[George M. Neffiner]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Franklin D. Roosevelt|Roosevelt]]/<br/>[[Henry A. Wallace|Wallace]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1941
|rowspan=2 {{Party shading/Democratic}}|[[John E. Sweeney (Ohio politician)|John E. Sweeney]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|19R, 17D
|rowspan=2 {{Party shading/Republican}}|78R, 60D
|rowspan=6 {{Party shading/Republican}}|5R, 2D
|rowspan=4 {{Party shading/Republican}}|[[Harold H. Burton]] <small>(R)</small>
|rowspan=2 {{Party shading/Tie}}|12R, 12D
|- style="height:2em"
!1942
|- style="height:2em"
!1943
|rowspan=6 {{Party shading/Republican}}|[[Edward J. Hummel]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|28R, 5D
|rowspan=2 {{Party shading/Republican}}|111R, 25D
|rowspan=2 {{Party shading/Republican}}|20R, 3D
|- style="height:2em"
!1944
|rowspan=4 {{Party shading/Republican}}|[[Thomas E. Dewey|Dewey]]/<br/>[[John W. Bricker|Bricker]] <small>(R)</small> {{Nay}}
|- style="height:2em"
!1945
|rowspan=2 {{Party shading/Democratic}}|[[Frank Lausche]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[George D. Nye]] <small>(D)</small>
|rowspan=4 {{Party shading/Republican}}|[[Hugh S. Jenkins]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|20R, 13D
|rowspan=2 {{Party shading/Republican}}|89R, 47D
|{{Party shading/Democratic}}|[[James W. Huffman]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|17R, 6D
|- style="height:2em"
!1946
|{{Party shading/Republican}}|[[Kingsley A. Taft]] <small>(R)</small>
|- style="height:2em"
!1947
|rowspan=2 {{Party shading/Republican}}|[[Thomas J. Herbert]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Paul M. Herbert]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|32R, 4D
|rowspan=2 {{Party shading/Republican}}|123R, 16D
|rowspan=2 {{Party shading/Republican}}|4R, 3D
|rowspan=13 {{Party shading/Republican}}|[[John W. Bricker]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|19R, 4D
|- style="height:2em"
!1948
|rowspan=4 {{Party shading/Democratic}}|[[Harry S. Truman|Truman]]/<br/>[[Alben W. Barkley|Barkley]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1949
|rowspan=8 {{Party shading/Democratic}}|[[Frank Lausche]] <small>(D)</small>{{efn|name=res-senate}}
|rowspan=4 {{Party shading/Democratic}}|George D. Nye <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Herbert S. Duffy]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|[[Donald K. Zoller]] <small>(R)</small>
|rowspan=2 {{Party shading/Democratic}}|19D, 14R
|rowspan=2 {{Party shading/Democratic}}|69D, 66R
|rowspan=5 {{Party shading/Republican}}|5R, 2D
|rowspan=2 {{Party shading/Democratic}}|12D, 11R
|- style="height:2em"
!1950
|- style="height:2em"
!1951
|rowspan=6 {{Party shading/Republican}}|[[C. William O'Neill]] <small>(R)</small>
|rowspan=30 {{Party shading/Republican}}|[[Ted W. Brown]] <small>(R)</small>
|rowspan=9 {{Party shading/Republican}}|[[Roger W. Tracy]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|26R, 7D
|rowspan=2 {{Party shading/Republican}}|98R, 36D, 1I
|rowspan=4 {{Party shading/Republican}}|16R, 6D, 1I
|- style="height:2em"
!1952
|rowspan=9 {{Party shading/Republican}}|[[Dwight D. Eisenhower|Eisenhower]]/<br/>[[Richard Nixon|Nixon]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1953
|rowspan=4 {{Party shading/Republican}}|[[John William Brown|John W. Brown]] <small>(R)</small>
|rowspan=11 {{Party shading/Republican}}|[[Jim Rhodes]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|23R, 10D
|rowspan=2 {{Party shading/Republican}}|102R, 34D
|{{Party shading/Democratic}}|[[Thomas A. Burke]] <small>(D)</small>
|- style="height:2em"
!1954
|rowspan=10 {{Party shading/Republican}}|4R, 3D
|rowspan=3 {{Party shading/Republican}}|[[George H. Bender]] <small>(D)</small>
|- style="height:2em"
!1955
|rowspan=2 {{Party shading/Republican}}|21R, 12D
|rowspan=2 {{Party shading/Republican}}|89R, 47D
|rowspan=5 {{Party shading/Republican}}|17R, 6D
|- style="height:2em"
!1956
|- style="height:2em"
!rowspan=2|1957
|{{Party shading/Republican}}|[[John William Brown|John W. Brown]] <small>(R)</small>{{efn|name=lt-filled}}
|''vacant''
|rowspan=3 {{Party shading/Republican}}|[[William B. Saxbe]]<small>(R)</small>
|rowspan=3 {{Party shading/Republican}}|22R, 12D
|rowspan=3 {{Party shading/Republican}}|97R, 42D
|rowspan=13 {{Party shading/Democratic}}|[[Frank Lausche]] <small>(D)</small>
|- style="height:2em"
|rowspan=2 {{Party shading/Republican}}|[[C. William O'Neill]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Paul M. Herbert]] <small>(R)</small>
|- style="height:2em"
!1958
|- style="height:2em"
!1959
|rowspan=4 {{Party shading/Democratic}}|[[Michael DiSalle]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[John W. Donahey]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Mark McElroy (Ohio politician)|Mark McElroy]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Joseph T. Ferguson]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|20D, 13R
|rowspan=2 {{Party shading/Democratic}}|78D, 61R
|rowspan=12 {{Party shading/Democratic}}|[[Stephen M. Young]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|15R, 8D
|- style="height:2em"
!1960
|rowspan=4 {{Party shading/Republican}}|[[Richard Nixon|Nixon]]/<br/>[[Henry Cabot Lodge Jr.|Lodge]] <small>(R)</small> {{Nay}}
|- style="height:2em"
!1961
|rowspan=2 {{Party shading/Republican}}|20R, 18D
|rowspan=2 {{Party shading/Republican}}|84R, 55D
|rowspan=2 {{Party shading/Republican}}|16R, 7D
|- style="height:2em"
!1962
|- style="height:2em"
!1963
|rowspan=8 {{Party shading/Republican}}|[[Jim Rhodes]] <small>(R)</small>
|rowspan=13 {{Party shading/Republican}}|[[John William Brown|John W. Brown]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|[[William B. Saxbe]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[John D. Herbert]] <small>(R)</small>
|{{Party shading/Republican}}|[[Roger W. Tracy]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|20R, 13D
|rowspan=2 {{Party shading/Republican}}|88R, 49D
|rowspan=7 {{Party shading/Republican}}|6R, 1D
|rowspan=2 {{Party shading/Republican}}|18R, 6D
|- style="height:2em"
!1964
|{{Party shading/Republican}}|[[Chester W. Goble]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Lyndon B. Johnson|Johnson]]/<br/>[[Hubert Humphrey|Humphrey]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1965
|{{Party shading/Republican}}|[[Roger Cloud]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|16R, 16D{{efn|Though the Senate was tied, the Republicans had control of the Senate Presidency due to the tie-breaking vote of the Lt. Governor.<ref>{{Cite web|title=Ohio Senate Democrats unveil tactics|url=https://news.google.com/newspapers?id=aCYxAAAAIBAJ&sjid=VwEEAAAAIBAJ&pg=7299,2944560|access-date=2021-06-24|website=news.google.com}}</ref>}}
|rowspan=2 {{Party shading/Republican}}|75R, 62D
|rowspan=2 {{Party shading/Republican}}|14R, 10D
|- style="height:2em"
!1966
|{{Party shading/Republican}}|[[Archer E. Reilly]] <small>(R)</small>
|- style="height:2em"
!1967
|rowspan=4 {{Party shading/Republican}}|[[Roger Cloud]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|23R, 10D
|rowspan=2 {{Party shading/Republican}}|62R, 37D
|rowspan=2 {{Party shading/Republican}}|19R, 5D
|- style="height:2em"
!1968
|rowspan=9 {{Party shading/Republican}}|[[Richard Nixon|Nixon]]/<br/>[[Spiro Agnew|Agnew]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1969
|rowspan=2 {{Party shading/Republican}}|[[Paul W. Brown]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|21R, 12D
|rowspan=2 {{Party shading/Republican}}|64R, 35D
|rowspan=6 {{Party shading/Republican}}|[[William B. Saxbe]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|18R, 6D
|- style="height:2em"
!1970
|rowspan=2 {{Party shading/Republican}}|7R
|- style="height:2em"
!1971
|rowspan=5 {{Party shading/Democratic}}|[[John J. Gilligan]] <small>(D)</small>
|rowspan=13 {{Party shading/Democratic}}|[[William J. Brown (Ohio politician)|William J. Brown]] <small>(D)</small>
|rowspan=13 {{Party shading/Democratic}}|[[Gertrude Walton Donahey|Gertrude W. Donahey]] <small>(D)</small>
|rowspan=5 {{Party shading/Democratic}}|[[Joseph T. Ferguson]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|20R, 13D
|rowspan=2 {{Party shading/Republican}}|54R, 45D
|rowspan=6 {{Party shading/Republican}}|[[Robert Taft Jr.]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|17R, 7D
|- style="height:2em"
!1972
|{{Party shading/Republican}}|6R, 1D
|- style="height:2em"
!1973
|rowspan=3 {{Party shading/Republican}}|17R, 16D
|rowspan=3 {{Party shading/Democratic}}|57D, 42R
|rowspan=5 {{Party shading/Republican}}|5R, 2D
|rowspan=3 {{Party shading/Republican}}|16R, 7D
|- style="height:2em"
!rowspan=2|1974
|- style="height:2em"
|{{Party shading/Democratic}}|[[Howard Metzenbaum]] <small>(D)</small>
|- style="height:2em"
!1975
|rowspan=8 {{Party shading/Republican}}|[[Jim Rhodes]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Dick Celeste]] <small>(D)</small>
|rowspan=20 {{Party shading/Democratic}}|[[Thomas E. Ferguson]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|21D, 12R
|rowspan=2 {{Party shading/Democratic}}|59D, 40R
| rowspan=25 {{Party shading/Democratic}} |[[John Glenn]] <small>(D)</small>
|rowspan=2 {{Party shading/Republican}}|15R, 8D
|- style="height:2em"
!1976
|rowspan=19 {{Party shading/Democratic}}|[[Howard Metzenbaum]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Jimmy Carter|Carter]]/<br/>[[Walter Mondale|Mondale]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1977
|rowspan=2 {{Party shading/Democratic}}|62D, 37R
|rowspan=4 {{Party shading/Democratic}}|4D, 3R
|rowspan=6 {{Party shading/Republican}}|13R, 10D
|- style="height:2em"
!1978
|- style="height:2em"
!1979
|{{Party shading/Republican}}|[[George Voinovich]] <small>(R)</small>{{efn|Resigned to become [[Mayor of Cleveland]].}}
|rowspan=4 {{Party shading/Democratic}}|[[Anthony J. Celebrezze Jr.]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|18D, 15R
|rowspan=2 {{Party shading/Democratic}}|63D, 36R
|- style="height:2em"
!1980
|rowspan=3|''vacant''
|rowspan=8 {{Party shading/Republican}}|[[Ronald Reagan|Reagan]]/<br/>[[George H. W. Bush|Bush]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1981
|rowspan=2 {{Party shading/Republican}}|18R, 15D
|rowspan=2 {{Party shading/Democratic}}|56D, 43R
|rowspan=2 {{Party shading/Democratic}}|5D, 2R
|- style="height:2em"
!1982
|- style="height:2em"
!1983
|rowspan=8 {{Party shading/Democratic}}|[[Dick Celeste]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Myrl Shoemaker]] <small>(D)</small>{{efn|name=died}}
|rowspan=8 {{Party shading/Democratic}}|[[Anthony J. Celebrezze Jr.]] <small>(D)</small>
|rowspan=8 {{party shading/Democratic}}|[[Sherrod Brown]] <small>(D)</small>
|rowspan=11 {{Party shading/Democratic}}|[[Mary Ellen Withrow]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|17D, 16R
|rowspan=2 {{Party shading/Democratic}}|62D, 37R
|rowspan=2 {{party shading/Democratic}}|6D, 1R
|rowspan=2 {{Party shading/Republican}}|11R, 10D
|- style="height:2em"
!1984
|- style="height:2em"
!1985
|rowspan=2|''vacant''
|rowspan=4 {{Party shading/Republican}}|18R, 15D
|rowspan=2 {{Party shading/Democratic}}|59D, 40R
|rowspan=2 {{party shading/Democratic}}|4D, 3R
|rowspan=8 {{Party shading/Democratic}}|11D, 10R
|- style="height:2em"
!1986
|- style="height:2em"
!1987
|rowspan=4 {{Party shading/Democratic}}|[[Paul Leonard (politician)|Paul Leonard]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|60D, 39R
|rowspan=8 {{Party shading/Republican}}|4R, 3D
|- style="height:2em"
!1988
|rowspan=4 {{Party shading/Republican}}|[[George H. W. Bush|Bush]]/<br/>[[Dan Quayle|Quayle]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!1989
|rowspan=2 {{Party shading/Republican}}|19R, 14D
|rowspan=2 {{Party shading/Democratic}}|59D, 40R
|- style="height:2em"
!1990
|- style="height:2em"
!1991
| rowspan=8 {{Party shading/Republican}} |[[George Voinovich]] <small>(R)</small>{{efn|name=res-senate}}
|rowspan=4 {{Party shading/Republican}}|[[Mike DeWine]] <small>(R)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Lee Fisher]] <small>(D)</small>
| rowspan=9 {{Party shading/Republican}} |[[Bob Taft]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|21R, 12D
|rowspan=2 {{Party shading/Democratic}}|61D, 38R
|- style="height:2em"
!1992
| rowspan=9 {{Party shading/Democratic}} |[[Bill Clinton]]/<br/>[[Al Gore]] <small>(D)</small> {{Aye}}
|- style="height:2em"
!1993
|rowspan=4 {{Party shading/Republican}}|20R, 13D
|rowspan=2 {{Party shading/Democratic}}|53D, 46R
|rowspan=2 {{Party shading/Democratic}}|10D, 9R
|- style="height:2em"
!1994
| rowspan=6 {{Party shading/Republican}} |[[Ken Blackwell]] <small>(R)</small>
|- style="height:2em"
!1995
| rowspan=4 {{Party shading/Republican}} |[[Nancy Hollister]] <small>(R)</small>
| rowspan=9 {{Party shading/Republican}} |[[Betty Montgomery]] <small>(R)</small>
| rowspan=9 {{Party shading/Republican}} |[[Jim Petro]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|56R, 43D
| rowspan=11 {{Party shading/Republican}} |5R, 2D
| rowspan=14 {{Party shading/Republican}} |[[Mike DeWine]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|13R, 6D
|- style="height:2em"
!1996
|- style="height:2em"
!1997
| rowspan=7 {{Party shading/Republican}} |21R, 12D
| rowspan=3 {{Party shading/Republican}} |60R, 39D
| rowspan=7 {{Party shading/Republican}} |11R, 8D
|- style="height:2em"
! rowspan=2 |1998
|- style="height:2em"
| {{Party shading/Republican}} |[[Nancy Hollister]] <small>(R)</small>{{efn|name=lt-filled}}
|''vacant''
|- style="height:2em"
!1999
|rowspan=9 {{Party shading/Republican}}|[[Bob Taft]] <small>(R)</small>
|rowspan=4 {{Party shading/Republican}}|[[Maureen O'Connor (judge)|Maureen O'Connor]] <small>(R)</small>
|rowspan=9 {{Party shading/Republican}}|[[Ken Blackwell]] <small>(R)</small>
|rowspan=7 {{Party shading/Republican}}|[[Joe Deters]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|59R, 40D
|rowspan=15 {{Party shading/Republican}}|[[George Voinovich]] <small>(R)</small>
|- style="height:2em"
!2000
|rowspan=9 {{Party shading/Republican}}|[[George W. Bush|Bush]]/<br/>[[Dick Cheney|Cheney]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!2001
|rowspan=2 {{Party shading/Republican}}|60R, 39D
|- style="height:2em"
!2002
|- style="height:2em"
!2003
|rowspan=3 {{Party shading/Republican}}|[[Jennette Bradley]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|[[Jim Petro]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|[[Betty Montgomery]] <small>(R)</small>
|rowspan=5 {{Party shading/Republican}}|22R, 11D
|rowspan=2 {{Party shading/Republican}}|62R, 37D
|rowspan=5 {{Party shading/Republican}}|12R, 6D
|- style="height:2em"
!2004
|- style="height:2em"
!rowspan=2|2005
|rowspan=3 {{Party shading/Republican}}|61R, 38D
|rowspan=3 {{Party shading/Republican}}|6R, 1D
|- style="height:2em"
|rowspan=2 {{Party shading/Republican}}|[[Bruce Johnson (Ohio politician)|Bruce Johnson]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|[[Jennette Bradley]] <small>(R)</small>
|- style="height:2em"
!2006
|- style="height:2em"
!2007
|rowspan=6 {{Party shading/Democratic}}|[[Ted Strickland]] <small>(D)</small>
|rowspan=6 {{Party shading/Democratic}}|[[Lee Fisher]] <small>(D)</small>
|rowspan=2 {{Party shading/Democratic}}|[[Marc Dann]] <small>(D)</small>{{efn|name=res|Resigned.}}
|rowspan=6 {{Party shading/Democratic}}|[[Jennifer Brunner]] <small>(D)</small>
|rowspan=4 {{Party shading/Democratic}}|[[Richard Cordray]] <small>(D)</small>{{efn|Resigned following election as state attorney general in November 2008 special election.}}
|rowspan=6 {{Party shading/Republican}}|[[Mary Taylor (Ohio politician)|Mary Taylor]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|21R, 12D
|rowspan=4 {{Party shading/Republican}}|53R, 46D
|rowspan=5 {{Party shading/Republican}}|7R
| rowspan=20 {{Party shading/Democratic}} |[[Sherrod Brown]] <small>(D)</small>
|rowspan=4 {{Party shading/Republican}}|11R, 7D
|- style="height:2em"
!rowspan=3|2008
|rowspan=10 {{Party shading/Democratic}}|[[Barack Obama|Obama]]/<br/>[[Joe Biden|Biden]] <small>(D)</small> {{Aye}}
|- style="height:2em"
|{{Party shading/Democratic}}|Tom Winters <small>(D)</small>{{efn|As deputy attorney general, acted as attorney general following Dann's resignation.}}
|- style="height:2em"
|{{Party shading/Democratic}}|[[Nancy H. Rogers]] <small>(D)</small>{{efn|name=app|Appointed to fill vacancy.}}
|- style="height:2em"
!2009
|rowspan=2 {{Party shading/Democratic}}|[[Richard Cordray]] <small>(D)</small>{{efn|Elected in November 2008 special election.}}
|rowspan=2 {{Party shading/Democratic}}|[[Kevin Boyce]] <small>(D)</small>{{efn|name=app}}
|rowspan=2 {{Party shading/Democratic}}|53D, 46R
|rowspan=2 {{Party shading/Democratic}}|10D, 8R
|- style="height:2em"
![[2010 Ohio elections|2010]]
|rowspan=8 {{Party shading/Republican}}|6R, 1D
|- style="height:2em"
!2011
|rowspan=8 {{Party shading/Republican}}|[[John Kasich]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[Mary Taylor (Ohio politician)|Mary Taylor]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[Mike DeWine]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[Jon Husted]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[Josh Mandel]] <small>(R)</small>
|rowspan=8 {{Party shading/Republican}}|[[Dave Yost]] <small>(R)</small>
|rowspan=6 {{Party shading/Republican}}|23R, 10D
|rowspan=2 {{Party shading/Republican}}|59R, 40D
| rowspan=12 {{Party shading/Republican}} |[[Rob Portman]] <small>(R)</small>
|rowspan=2 {{Party shading/Republican}}|13R, 5D
|- style="height:2em"
![[2012 Ohio elections|2012]]
|- style="height:2em"
!2013
|rowspan=2 {{Party shading/Republican}}|60R, 39D
| rowspan=10 {{Party shading/Republican}} |12R, 4D
|- style="height:2em"
![[2014 Ohio elections|2014]]
|- style="height:2em"
!2015
|rowspan=2 {{Party shading/Republican}}|65R, 34D
|- style="height:2em"
![[2016 Ohio elections|2016]]
| rowspan=4 {{Party shading/Republican}} |[[Donald Trump|Trump]]/<br/>[[Mike Pence|Pence]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!2017
| rowspan=4 {{Party shading/Republican}} |24R, 9D
|rowspan=2 {{Party shading/Republican}}|66R, 33D
|- style="height:2em"
![[2018 Ohio elections|2018]]
| {{Party shading/Republican}}|7R
|- style="height:2em"
!2019
| rowspan=7 {{Party shading/Republican/current}} |[[Mike DeWine]] <small>(R)</small>
| rowspan=6 {{Party shading/Republican}} |[[Jon Husted]] <small>(R)</small>
| rowspan=7 {{Party shading/Republican/current}} |[[Dave Yost]] <small>(R)</small>
| rowspan=7 {{Party shading/Republican/current}} |[[Frank LaRose]] <small>(R)</small>
| rowspan=7 {{Party shading/Republican/current}} |[[Robert Sprague]] <small>(R)</small>
| rowspan=7 {{Party shading/Republican/current}} |[[Keith Faber]] <small>(R)</small>
| rowspan=2 {{Party shading/Republican}} |61R, 38D
| rowspan=2 {{Party shading/Republican}} |5R, 2D
|- style="height:2em"
![[2020 Ohio elections|2020]]
| rowspan=4 {{Party shading/Republican}} |[[Donald Trump|Trump]]/<br/>[[Mike Pence|Pence]] <small>(R)</small> {{Nay}}
|- style="height:2em"
!2021
|rowspan=2 {{Party shading/Republican}} |25R, 8D
|rowspan=2 {{Party shading/Republican}} |64R, 35D
|rowspan=4 {{Party shading/Republican}} |4R, 3D
|- style="height:2em"
![[2022 Ohio elections|2022]]
|-
!2023
|rowspan=2 {{Party shading/Republican}} |26R, 7D
|rowspan=2 {{Party shading/Republican}} |67R, 32D
|rowspan=2 {{Party shading/Republican}} |[[JD Vance]] <small>(R)</small>{{efn|Resigned to take office as [[Vice President of the United States]].}}
|rowspan=3 {{Party shading/Republican/current}} |10R, 5D
|- style="height:2em"
![[2024 Ohio elections|2024]]
| rowspan=2 {{Party shading/Republican}} |[[Donald Trump|Trump]]/<br/>[[JD Vance|Vance]] <small>(R)</small> {{Aye}}
|- style="height:2em"
!2025
|rowspan=1 {{Party shading/Republican/current}} |[[Jim Tressel]] <small>(R)</small>{{efn|name=app}}
|rowspan=1 {{Party shading/Republican/current}} |24R, 9D
|rowspan=1 {{Party shading/Republican/current}} |65R, 34D
|rowspan=1 {{Party shading/Republican/current}} |6R, 1D
|rowspan=1 {{Party shading/Republican/current}} |[[Bernie Moreno]] <small>(R)</small>
|rowspan=1 {{Party shading/Republican/current}} |[[Jon Husted]] <small>(R)</small>{{efn|name=app}}
|}
{{United States political party shading key}}
{{Notelist}}

==See also==
*[[Elections in Ohio]]
*[[Ohio#Politics|Political demographics and history in Ohio]]
*[[Politics of Ohio]]

==References==
{{reflist}}
*{{cite book|title=History of the Republican Party in Ohio |editor-first=Joseph P |editor-last=Smith |year=1898 |volume=I |publisher=the Lewis Publishing Company |location=Chicago |ref=smith1898| url=https://books.google.com/books?id=eaAFAAAAMAAJ&dq=ford&pg=PA40}}

{{Political party strength in U.S. states}}

{{DEFAULTSORT:Political Party Strength In Ohio}}
[[Category:Politics of Ohio]]
[[Category:Government of Ohio]]
[[Category:Political party strength in the United States by state|Ohio]]