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These are tables of congressional delegations from Ohio to the United States House of Representatives and the United States Senate.
The current dean of the Ohio delegation is Representative Marcy Kaptur (OH-9), having served in the House since 1983.
U.S. House of Representatives
Current members
This is a list of United States representatives from Ohio, their terms in office, district boundaries, and the district political ratings according to the CPVI. The delegation has a total of 15 members, with 10 Republicans and 5 Democrats.
1803–1813: One seat
After statehood, Ohio had one representative, elected statewide at-large.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress
!
|- style="height:2.5em"
| 8th <small>(1803–1805)</small>
| rowspan=3 | Jeremiah Morrow <small>(DR)</small>
|- style="height:2.5em"
| 9th <small>(1805–1807)</small>
|- style="height:2.5em"
| 10th <small>(1807–1809)</small>
|- style="height:2.5em"
| 11th <small>(1809–1811)</small>
| | Jeremiah Morrow <small>(DR Quid)</small>
|- style="height:2.5em"
| 12th <small>(1811–1813)</small>
| | Jeremiah Morrow <small>(DR)</small>
|}
1813–1823: 6 seats
Six seats were apportioned by districts.
{| class=wikitable style="text-align:center"
|- style="height:2.5em"
! Congress !! !! !! !! !! !!
|- style="height:2em"
| rowspan=2 | 13th <small>(1813–1815)</small>
| rowspan=3 | John<br/>McLean <small>(DR)</small>
| rowspan=4 | John<br/>Alexander <small>(DR)</small>
| | Duncan McArthur <small>(DR)</small>
| rowspan=4 | James<br/>Caldwell <small>(DR)</small>
| rowspan=4 | James<br/>Kilbourne <small>(DR)</small>
| | Reasin Beall <small>(DR)</small>
|- style="height:1.5em"
| rowspan=3 | William<br/>Creighton Jr. <small>(DR)</small>
| rowspan=3 | David<br/>Clendenin <small>(DR)</small>
|- style="height:1.5em"
| rowspan=2 | 14th <small>(1815–1817)</small>
|- style="height:1.5em"
| rowspan=2 | William Henry<br/>Harrison <small>(DR)</small>
|- style="height:2.5em"
| 15th <small>(1817–1819)</small>
| rowspan=3 | John Wilson<br/>Campbell <small>(DR)</small>
| | Levi Barber <small>(DR)</small>
| rowspan=2 | Samuel<br/>Herrick <small>(DR)</small>
| rowspan=2 | Philemon<br/>Beecher <small>(DR)</small>
| | Peter Hitchcock <small>(DR)</small>
|- style="height:2.5em"
| 16th <small>(1819–1821)</small>
| rowspan=2 | Thomas R.<br/>Ross <small>(DR)</small>
| | Henry Brush <small>(DR)</small>
| rowspan=2 | John Sloane <small>(DR)</small>
|- style="height:2.5em"
| 17th <small>(1821–1823)</small>
| | Levi Barber <small>(DR)</small>
| | David Chambers <small>(DR)</small>
| | Joseph Vance <small>(DR)</small>
|}
1823–1833: 14 seats
{| class=wikitable style="text-align:center"
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! rowspan=2 | Congress
! colspan=14 | District
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| 18th<br/><small>(1823–1825)</small>
| | James W.<br/>Gazlay <small>(DR)</small>
| | Thomas R.<br/>Ross <small>(DR)</small>
| | William<br/>McLean <small>(DR)</small>
| | Joseph<br/>Vance <small>(DR)</small>
| | John Wilson<br/>Campbell <small>(DR)</small>
| | Duncan<br/>McArthur <small>(DR)</small>
| | Samuel F.<br/>Vinton <small>(DR)</small>
| | William<br/>Wilson <small>(DR)</small>
| | Philemon<br/>Beecher <small>(DR)</small>
| | John<br/>Patterson <small>(DR)</small>
| | John C.<br/>Wright <small>(DR)</small>
| | John<br/>Sloane <small>(DR)</small>
| | Elisha<br/>Whittlesey <small>(DR)</small>
| | Mordecai<br/>Bartley <small>(DR)</small>
|- style="height:2em"
| rowspan=2 | 19th<br/><small>(1825–1827)</small>
| rowspan=7 | James<br/>Findlay <small>(J)</small>
| rowspan=4 | John<br/>Woods <small>(NR)</small>
| rowspan=4 | William<br/>McLean <small>(NR)</small>
| rowspan=7 | Joseph<br/>Vance <small>(NR)</small>
| rowspan=2 | John Wilson<br/>Campbell <small>(NR)</small>
| rowspan=2 | John Thomson <small>(J)</small>
| rowspan=7 | Samuel F.<br/>Vinton <small>(NR)</small>
| rowspan=3 | William<br/>Wilson <small>(NR)</small>
| rowspan=4 | Philemon<br/>Beecher <small>(NR)</small>
| | David Jennings <small>(NR)</small>
| rowspan=4 | John C.<br/>Wright <small>(NR)</small>
| rowspan=4 | John<br/>Sloane <small>(NR)</small>
| rowspan=7 | Elisha<br/>Whittlesey <small>(NR)</small>
| rowspan=6 | Mordecai<br/>Bartley <small>(NR)</small>
|- style="height:2em"
| | Thomas Shannon <small>(NR)</small>
|- style="height:2em"
| rowspan=2 | 20th<br/><small>(1827–1829)</small>
| rowspan=5 | William<br/>Russell <small>(J)</small>
| | William<br/>Creighton <small>(NR)</small>
| rowspan=2 | John<br/>Davenport <small>(NR)</small>
|- style="height:2em"
| | Francis Swaine<br/>Muhlenberg <small>(NR)</small>
| rowspan=3 | William<br/>Stanbery <small>(J)</small>
|- style="height:2em"
| rowspan=2 | 21st<br/><small>(1829–1831)</small>
| rowspan=2 | James<br/>Shields <small>(J)</small>
| rowspan=3 | Joseph H.<br/>Crane <small>(NR)</small>
| rowspan=3 | William<br/>Creighton Jr. <small>(NR)</small>
| rowspan=3 | William W.<br/>Irvin <small>(J)</small>
| rowspan=3 | William<br/>Kennon Sr. <small>(J)</small>
| | John M.<br/>Goodenow <small>(J)</small>
| rowspan=3 | John<br/>Thomson <small>(J)</small>
|- style="height:2em"
| rowspan=3 | Humphrey H.<br/>Leavitt <small>(J)</small>
|- style="height:2em"
| 22nd<br/><small>(1831–1833)</small>
| | Thomas<br/>Corwin <small>(NR)</small>
| | William<br/>Stanbery <small>(NR)</small>
| | Eleutheros<br/>Cooke <small>(NR)</small>
|}
1833–1843: 19 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=10 | District
! colspan=9 | District
|- style="height:2em"
!
!
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| rowspan=2 | 23rd<br/><small>(1833–1835)</small>
| rowspan=2 | Robert Todd Lytle <small>(J)</small>
| rowspan=3 | Taylor Webster <small>(J)</small>
| rowspan="3" | Joseph H. Crane <small>(NR)</small>
| rowspan="3" | Thomas Corwin <small>(NR)</small>
| rowspan=3 | Thomas L. Hamer <small>(J)</small>
| rowspan="3" | Samuel F. Vinton <small>(NR)</small>
| rowspan=2 | William Allen <small>(J)</small>
| rowspan=3 | Jeremiah McLene <small>(J)</small>
| rowspan=3 | John Chaney <small>(J)</small>
| rowspan=2 | Joseph Vance <small>(NR)</small>
| rowspan=2 | James M. Bell <small>(NR)</small>
| rowspan=2 | Robert Mitchell <small>(J)</small>
| rowspan="3" | David Spangler <small>(NR)</small>
| rowspan=3 | William Patterson <small>(J)</small>
| rowspan=3 | Jonathan Sloane
| rowspan=2 | Elisha Whittlesey
| rowspan=3 | John Thomson <small>(J)</small>
| rowspan=3 | Benjamin Jones <small>(J)</small>
| | Humphrey H. Leavitt <small>(J)</small>
|- style="height:2em"
| rowspan=2 | Daniel Kilgore <small>(J)</small>
|- style="height:2em"
| 24th<br/><small>(1835–1837)</small>
| | Bellamy Storer <small>(NR)</small>
| | William K. Bond <small>(NR)</small>
| | Samson Mason <small>(NR)</small>
| | William Kennon Sr. <small>(J)</small>
| | Elias Howell <small>(NR)</small>
| | Elisha Whittlesey <small>(NR)</small>
|- style="height:2em"
| rowspan=2 | 25th<br/><small>(1837–1839)</small>
| rowspan=4 | Alexander Duncan <small>(D)</small>
| rowspan=2 | Taylor Webster <small>(D)</small>
| rowspan=5 | Patrick Gaines Goode <small>(W)</small>
| rowspan=3 | Thomas Corwin <small>(W)</small>
| rowspan=2 | Thomas L. Hamer <small>(D)</small>
| rowspan=5 | Calvary Morris <small>(W)</small>
| rowspan=4 | William K. Bond <small>(W)</small>
| rowspan=5 | Joseph Ridgway <small>(W)</small>
| rowspan=2 | John Chaney <small>(D)</small>
| rowspan=5 | Samson Mason <small>(W)</small>
| rowspan=2 | James Alexander Jr. <small>(W)</small>
| rowspan=2 | Alexander Harper <small>(W)</small>
| rowspan=4 | Daniel P. Leadbetter <small>(D)</small>
| rowspan=2 | William H. Hunter <small>(D)</small>
| rowspan=4 | John W. Allen <small>(W)</small>
| | Elisha Whittlesey <small>(W)</small>
| | Andrew W. Loomis <small>(W)</small>
| rowspan=2 | Matthias Shepler <small>(D)</small>
| | Daniel Kilgore <small>(D)</small>
|- style="height:2em"
| rowspan=4 | Joshua Reed Giddings <small>(W)</small>
| | Charles D. Coffin <small>(W)</small>
| rowspan=3 | Henry Swearingen <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 26th<br/><small>(1839–1841)</small>
| rowspan=3 | John B. Weller <small>(D)</small>
| rowspan=3 | William Doan <small>(D)</small>
| rowspan=3 | William Medill <small>(D)</small>
| rowspan=2 | Isaac Parrish <small>(D)</small>
| rowspan=2 | Jonathan Taylor <small>(D)</small>
| rowspan=3 | George Sweeny <small>(D)</small>
| rowspan=3 | John Hastings <small>(D)</small>
| rowspan=2 | David A. Starkweather <small>(D)</small>
|- style="height:2em"
| rowspan=2 | Jeremiah Morrow <small>(W)</small>
|- style="height:2em"
| 27th<br/><small>(1841–1843)</small>
| | Nathanael G. Pendleton <small>(W)</small>
| | William Russell <small>(W)</small>
| | Benjamin S. Cowen <small>(W)</small>
| | Joshua Mathiot <small>(W)</small>
| | James Mathews <small>(D)</small>
| | Sherlock J. Andrews <small>(W)</small>
| | Ezra Dean <small>(D)</small>
| | Samuel Stokely <small>(W)</small>
|}
1843–1863: 21 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=10 | District
! rowspan=99 |
! colspan=11 | District
|- style="height:2em"
!
!
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|- style="height:2em"
| rowspan=2 | 28th<br/><small>(1843–1845)</small>
| rowspan=2 | Alexander Duncan <small>(D)</small>
| rowspan=2 | John B. Weller <small>(D)</small>
| rowspan=7 | Robert C. Schenck <small>(W)</small>
| rowspan=3 | Joseph Vance <small>(W)</small>
| rowspan=2 | Emery D. Potter <small>(D)</small>
| rowspan=3 | Henry St. John <small>(D)</small>
| rowspan=3 | Joseph J. McDowell <small>(D)</small>
| rowspan=2 | John I. Vanmeter <small>(W)</small>
| rowspan=2 | Elias Florence <small>(W)</small>
| | Heman A. Moore <small>(D)</small>
| rowspan=3 | Jacob Brinker­hoff <small>(D)</small>
| rowspan=7 | Samuel F. Vinton <small>(W)</small>
| rowspan=2 | Perley B. Johnson <small>(W)</small>
| rowspan=3 | Alexander Harper <small>(W)</small>
| rowspan=3 | Joseph Morris <small>(D)</small>
| rowspan=2 | James Mathews <small>(D)</small>
| rowspan=2 | William C. McCauslen <small>(D)</small>
| rowspan=2 | Ezra Dean <small>(D)</small>
| rowspan=3 | Daniel R. Tilden <small>(W)</small>
| rowspan=4 | Joshua Reed Giddings <small>(W)</small>
| | Henry R. Brinker­hoff <small>(D)</small>
|- style="height:2em"
| | Alfred P. Stone <small>(D)</small>
| | Edward Hamlin <small>(W)</small>
|- style="height:2em"
| 29th<br/><small>(1845–1847)</small>
| rowspan=2 | James J. Faran <small>(D)</small>
| | Francis A. Cunning­ham <small>(D)</small>
| rowspan=2 | William Sawyer <small>(D)</small>
| | Allen G. Thurman <small>(D)</small>
| | Augustus L. Perrill <small>(D)</small>
| | Columbus Delano <small>(W)</small>
| | Isaac Parrish <small>(D)</small>
| rowspan=2 | John D. Cummins <small>(D)</small>
| rowspan=2 | George Fries <small>(D)</small>
| | David A. Stark­weather <small>(D)</small>
| rowspan=2 | Joseph M. Root <small>(W)</small>
|- style="height:2em"
| 30th<br/><small>(1847–1849)</small>
| | David Fisher <small>(W)</small>
| | Richard S. Canby <small>(W)</small>
| rowspan=2 | Rodolphus Dickinson <small>(D)</small>
| rowspan=4 | Jonathan D. Morris <small>(D)</small>
| rowspan=5 | John L. Taylor <small>(W)</small>
| | Thomas Edwards <small>(W)</small>
| | Daniel Duncan <small>(W)</small>
| rowspan=4 | John K. Miller <small>(D)</small>
| | Thomas Ritchey <small>(D)</small>
| rowspan=4 | Nathan Evans <small>(W)</small>
| | William Kennon Jr. <small>(D)</small>
| | Samuel Lahm <small>(D)</small>
| rowspan=4 | John Crowell <small>(W)</small>
|- style="height:2em"
| rowspan=3 | 31st<br/><small>(1849–1851)</small>
| rowspan=5 | David T. Disney <small>(D)</small>
| rowspan=4 | Lewis D. Campbell <small>(W)</small>
| rowspan=3 | Moses Bledso Corwin <small>(W)</small>
| rowspan=3 | Emery D. Potter <small>(D)</small>
| rowspan=4 | Edson B. Olds <small>(D)</small>
| rowspan=4 | Charles Sweetser <small>(D)</small>
| rowspan=3 | William A. Whittlesey <small>(D)</small>
| rowspan=4 | William F. Hunter <small>(W)</small>
| rowspan=3 | Moses Hoagland <small>(D)</small>
| rowspan=4 | Joseph Cable <small>(D)</small>
| rowspan=4 | David Kellogg Cartter <small>(D)</small>
| rowspan=5 | Joshua Reed Giddings <small>(FS)</small>
| rowspan=3 | Joseph M. Root <small>(FS)</small>
|- style="height:2em"
| | Amos E. Wood <small>(D)</small>
|- style="height:2em"
| | John Bell <small>(W)</small>
|- style="height:2em"
| 32nd<br/><small>(1851–1853)</small>
| | Hiram Bell <small>(W)</small>
| | Benjamin Stanton <small>(W)</small>
| rowspan=2 | Alfred Peck Edgerton <small>(D)</small>
| | Frederick W. Green <small>(D)</small>
| | Nelson Barrere <small>(W)</small>
| | George H. Busby <small>(D)</small>
| | John Welch <small>(W)</small>
| | James M. Gaylord <small>(D)</small>
| | Alexander Harper <small>(W)</small>
| | John Johnson <small>(ID)</small>
| | Eben Newton <small>(W)</small>
| | Norton Towns­hend <small>(D)</small>
|- style="height:2em"
| 33rd<br/><small>(1853–1855)</small>
| | John Scott Harrison <small>(W)</small>
| | Lewis D. Campbell <small>(W)</small>
| | Matthias Nichols <small>(D)</small>
| | Andrew Ellison <small>(D)</small>
| | Aaron Harlan <small>(W)</small>
| | Moses Corwin <small>(W)</small>
| | Frederick W. Green <small>(D)</small>
| | John L. Taylor <small>(W)</small>
| | Thomas Ritchey <small>(D)</small>
| | Edson B. Olds <small>(D)</small>
| | William D. Lindsley <small>(D)</small>
| | Harvey H. Johnson <small>(D)</small>
| | William R. Sapp <small>(W)</small>
| | Edward Ball <small>(W)</small>
| | Wilson Shannon <small>(D)</small>
| | George Bliss <small>(D)</small>
| | Edward Wade <small>(FS)</small>
| | Andrew Stuart <small>(D)</small>
|- style="height:2em"
| 34th<br/><small>(1855–1857)</small>
| | Timothy C. Day <small>(O)</small>
| | John Scott Harrison <small>(O)</small>
| | Lewis D. Campbell <small>(O)</small>
| | Matthias Nichols <small>(O)</small>
| | Richard Mott <small>(O)</small>
| | Jonas R. Emrie <small>(O)</small>
| | Aaron Harlan <small>(O)</small>
| | Benjamin Stanton <small>(O)</small>
| | Cooper K. Watson <small>(O)</small>
| | Oscar F. Moore <small>(O)</small>
| | Valentine Horton <small>(O)</small>
| | Samuel Galloway <small>(O)</small>
| | John Sherman <small>(O)</small>
| | Philemon Bliss <small>(O)</small>
| | William R. Sapp <small>(O)</small>
| | Edward Ball <small>(O)</small>
| | Charles J. Albright <small>(O)</small>
| | Benjamin F. Leiter <small>(O)</small>
| | Edward Wade <small>(O)</small>
| | Joshua Reed Giddings <small>(O)</small>
| | John Bingham <small>(O)</small>
|- style="height:2em"
| rowspan=2 | 35th<br/><small>(1857–1859)</small>
| rowspan=6 | George H. Pendleton <small>(D)</small>
| rowspan=2 | William S. Groesbeck <small>(D)</small>
| | Lewis D. Campbell <small>(R)</small>
| rowspan=2 | Matthias H. Nichols <small>(R)</small>
| rowspan=2 | Richard Mott <small>(R)</small>
| rowspan=2 | Joseph R. Cockerill <small>(D)</small>
| rowspan=2 | Aaron Harlan <small>(R)</small>
| rowspan=4 | Benjamin Stanton <small>(R)</small>
| rowspan=2 | Lawrence W. Hall <small>(D)</small>
| rowspan=2 | Joseph Miller <small>(D)</small>
| rowspan=2 | Valentine B. Horton <small>(R)</small>
| rowspan=6 | Samuel S. Cox <small>(D)</small>
| rowspan=5 | John Sherman <small>(R)</small>
| rowspan=2 | Philemon Bliss <small>(R)</small>
| rowspan=2 | Joseph Burns <small>(D)</small>
| rowspan=4 | Cydnor B. Tompkins <small>(R)</small>
| rowspan=2 | William Lawrence <small>(D)</small>
| rowspan=2 | Benjamin F. Leiter <small>(R)</small>
| rowspan=4 | Edward Wade <small>(R)</small>
| rowspan=2 | Joshua Reed Giddings <small>(R)</small>
| rowspan=6 | John Bingham <small>(R)</small>
|- style="height:2em"
| rowspan=5 | Clement Vallan­digham <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 36th<br/><small>(1859–1861)</small>
| rowspan=4 | John A. Gurley <small>(R)</small>
| rowspan=4 | William Allen <small>(D)</small>
| rowspan=4 | James Mitchell Ashley <small>(R)</small>
| rowspan=2 | William Howard <small>(D)</small>
| rowspan=3 | Thomas Corwin <small>(R)</small>
| rowspan=2 | John Carey <small>(R)</small>
| rowspan=4 | Carey A. Trimble <small>(R)</small>
| rowspan=2 | Charles D. Martin <small>(D)</small>
| | Cyrus Spink <small>(R)</small>
| rowspan=2 | William Helmick <small>(R)</small>
| rowspan=2 | Thomas Clarke Theaker <small>(R)</small>
| rowspan=4 | Sidney Edgerton <small>(R)</small>
| rowspan=4 | John Hutchins <small>(R)</small>
|- style="height:2em"
| rowspan=3 | Harrison G. O. Blake <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 37th<br/><small>(1861–1863)</small>
| rowspan=2 | Chilton A. White <small>(D)</small>
| rowspan=2 | Samuel Shella­barger <small>(R)</small>
| rowspan=2 | Warren P. Noble <small>(D)</small>
| rowspan=2 | Valentine B. Horton <small>(R)</small>
| rowspan=2 | Robert H. Nugen <small>(D)</small>
| rowspan=2 | William P. Cutler <small>(R)</small>
| rowspan=2 | James R. Morris <small>(D)</small>
| rowspan=2 | Albert G. Riddle <small>(R)</small>
|- style="height:2em"
| | Richard Harrison (U)
| | Samuel T. Worcester <small>(R)</small>
|}
1863–1873: 19 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=19 | District
|- style="height:2em"
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|- style="height:2em"
| 38th<br/><small>(1863–1865)</small>
| | George H. Pendleton <small>(D)</small>
| | Alexander Long <small>(D)</small>
| rowspan=6 | Robert C. Schenck <small>(R)</small>
| | John F. McKinney <small>(D)</small>
| rowspan=2 | Francis Celeste Le Blond <small>(D)</small>
| | Chilton A. White <small>(D)</small>
| | Samuel S. Cox <small>(D)</small>
| | William Johnston <small>(D)</small>
| | Warren P. Noble <small>(D)</small>
| rowspan=4 | James Mitchell Ashley <small>(R)</small>
| | Wells A. Hutchins <small>(D)</small>
| rowspan=2 | William E. Finck <small>(D)</small>
| | John O'Neill <small>(D)</small>
| | George Bliss <small>(D)</small>
| | James R. Morris <small>(D)</small>
| | Joseph W. White <small>(D)</small>
| rowspan=4 | Ephraim R. Eckley <small>(R)</small>
| rowspan=4 | Rufus P. Spalding <small>(R)</small>
| rowspan=8 | James A. Garfield <small>(R)</small>
|- style="height:2em"
| 39th<br/><small>(1865–1867)</small>
| rowspan=3 | Benjamin Eggleston <small>(R)</small>
| rowspan=2 | Rutherford B. Hayes <small>(R)</small>
| rowspan=5 | William Lawrence <small>(R)</small>
| rowspan=3 | Reader W. Clarke <small>(R)</small>
| rowspan=3 | Samuel Shella­barger <small>(R)</small>
| | James R. Hubbell <small>(R)</small>
| rowspan=3 | Ralph Pomeroy Buckland <small>(R)</small>
| | Hezekiah S. Bundy <small>(R)</small>
| | Columbus Delano <small>(R)</small>
| rowspan=5 | Martin Welker <small>(R)</small>
| rowspan=3 | Tobias A. Plants <small>(R)</small>
| rowspan=7 | John Bingham <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 40th<br/><small>(1867–1869)</small>
| rowspan=4 | William Mungen <small>(D)</small>
| | Cornelius S. Hamilton <small>(R)</small>
| rowspan=6 | John Thomas Wilson <small>(R)</small>
| rowspan=6 | Philadelph Van Trump <small>(D)</small>
| | George W. Morgan <small>(D)</small>
|- style="height:2em"
| | Samuel F. Cary <small>(IR)</small>
| rowspan=5 | John Beatty <small>(R)</small>
| | Columbus Delano <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 41st<br/><small>(1869–1871)</small>
| rowspan=2 | Peter W. Strader <small>(D)</small>
| rowspan=4 | Job E. Stevenson <small>(R)</small>
| rowspan=4 | John A. Smith <small>(R)</small>
| rowspan=2 | James J. Winans <small>(R)</small>
| rowspan=2 | Edward F. Dickinson <small>(D)</small>
| | Truman H. Hoag <small>(D)</small>
| rowspan=4 | George W. Morgan <small>(D)</small>
| rowspan=2 | Eliakim H. Moore <small>(R)</small>
| rowspan=4 | Jacob A. Ambler <small>(R)</small>
| rowspan=4 | William H. Upson <small>(R)</small>
|- style="height:2em"
| rowspan=3 | Erasmus D. Peck <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 42nd<br/><small>(1871–1873)</small>
| | Aaron F. Perry <small>(R)</small>
| rowspan=2 | Lewis D. Campbell <small>(D)</small>
| rowspan=2 | John F. McKinney <small>(D)</small>
| rowspan=2 | Charles N. Lamison <small>(D)</small>
| rowspan=2 | Samuel Shella­barger <small>(R)</small>
| rowspan=2 | Charles Foster <small>(R)</small>
| rowspan=2 | James Monroe <small>(R)</small>
| rowspan=2 | William P. Sprague <small>(R)</small>
|- style="height:2em"
| | Ozro J. Dodds <small>(D)</small>
|}
1873–1883: 20 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan="20" | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| rowspan=2 | 43rd<br/><small>(1873–1875)</small>
| rowspan=4 | Milton Sayler <small>(D)</small>
| rowspan=2 | Henry B. Banning <small>(LR)</small>
| rowspan=2 | John Quincy Smith <small>(R)</small>
| rowspan=2 | Lewis B. Gunckel <small>(R)</small>
| rowspan=2 | Charles N. Lamison <small>(D)</small>
| rowspan=2 | Isaac R. Sherwood <small>(R)</small>
| rowspan=3 | Lawrence T. Neal <small>(D)</small>
| rowspan=3 | William Lawrence <small>(R)</small>
| rowspan=2 | James Wallace Robinson <small>(R)</small>
| rowspan=4 | Charles Foster <small>(R)</small>
| rowspan=2 | Hezekiah S. Bundy <small>(R)</small>
| | Hugh J. Jewett <small>(D)</small>
| rowspan=4 | Milton I. Southard <small>(D)</small>
| rowspan=2 | John Berry <small>(D)</small>
| rowspan=2 | William P. Sprague <small>(R)</small>
| rowspan=4 | Lorenzo Danford <small>(R)</small>
| rowspan=3 | Laurin D. Wood­worth <small>(R)</small>
| rowspan=4 | James Monroe <small>(R)</small>
| rowspan=5 | James A. Garfield <small>(R)</small>
| rowspan=2 | Richard C. Parsons <small>(R)</small>
|- style="height:2em"
| | William E. Finck <small>(D)</small>
|- style="height:2em"
| 44th<br/><small>(1875–1877)</small>
| rowspan=2 | Henry B. Banning <small>(D)</small>
| | John S. Savage <small>(D)</small>
| rowspan=2 | John A. McMahon <small>(D)</small>
| rowspan=2 | Americus V. Rice <small>(D)</small>
| | Frank H. Hurd <small>(D)</small>
| | Earley F. Poppleton <small>(D)</small>
| | John L. Vance <small>(D)</small>
| | Ansel T. Walling <small>(D)</small>
| | Jacob Pitzer Cowan <small>(D)</small>
| rowspan=2 | Nelson H. Van Vorhes <small>(R)</small>
| | Henry B. Payne <small>(D)</small>
|- style="height:2em"
| 45th<br/><small>(1877–1879)</small>
| | Mills Gardner <small>(R)</small>
| | Jacob Dolson Cox <small>(R)</small>
| | Henry L. Dickey <small>(D)</small>
| | J. Warren Keifer <small>(R)</small>
| | John S. Jones <small>(R)</small>
| | Henry S. Neal <small>(R)</small>
| | Thomas Ewing Jr. <small>(D)</small>
| | Ebenezer B. Finley <small>(D)</small>
| | William McKinley <small>(R)</small>
| rowspan=5 | Amos Townsend <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 46th<br/><small>(1879–1881)</small>
| rowspan=4 | Benjamin Butter­worth <small>(R)</small>
| rowspan=4 | Thomas L. Young <small>(R)</small>
| rowspan=2 | John A. McMahon <small>(D)</small>
| rowspan=2 | J. Warren Keifer <small>(R)</small>
| rowspan=4 | Benjamin Le Fevre <small>(D)</small>
| rowspan=2 | William D. Hill <small>(D)</small>
| rowspan=2 | Frank H. Hurd <small>(D)</small>
| rowspan=2 | Ebenezer B. Finley <small>(D)</small>
| rowspan=2 | George L. Converse <small>(D)</small>
| rowspan=2 | Thomas Ewing Jr. <small>(D)</small>
| rowspan=2 | Henry L. Dickey <small>(D)</small>
| rowspan=2 | Henry S. Neal <small>(R)</small>
| rowspan=2 | Adoniram J. Warner <small>(D)</small>
| rowspan=2 | Gibson Atherton <small>(D)</small>
| rowspan=2 | George W. Geddes <small>(D)</small>
| rowspan=2 | William McKinley <small>(R)</small>
| rowspan=2 | James Monroe <small>(R)</small>
| rowspan=2 | Jonathan Upde­graff <small>(R)</small>
|- style="height:2em"
| rowspan=3 | Ezra B. Taylor <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 47th<br/><small>(1881–1883)</small>
| rowspan=2 | Henry L. Morey <small>(R)</small>
| rowspan=2 | Emanuel Shultz <small>(R)</small>
| rowspan=2 | James M. Ritchie <small>(R)</small>
| rowspan=2 | John P. Leedom <small>(D)</small>
| rowspan=2 | J. Warren Keifer <small>(R)</small>
| rowspan=2 | James S. Robinson <small>(R)</small>
| rowspan=2 | John B. Rice <small>(R)</small>
| rowspan=2 | Henry S. Neal <small>(R)</small>
| rowspan=2 | George L. Converse <small>(D)</small>
| rowspan=2 | Gibson Atherton <small>(D)</small>
| rowspan=2 | George W. Geddes <small>(D)</small>
| rowspan=2 | Rufus Dawes <small>(R)</small>
| | Jonathan Upde­graff <small>(R)</small>
| rowspan=2 | William McKinley <small>(R)</small>
| rowspan=2 | Addison S. McClure <small>(R)</small>
|- style="height:2em"
| | Joseph D. Taylor <small>(R)</small>
|}
1883–1913: 21 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=10 | District
! colspan=11 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| rowspan=2 | 48th<br/><small>(1883–1885)</small>
| rowspan=2 | John F. Follett <small>(D)</small>
| rowspan=2 | Isaac M. Jordan <small>(D)</small>
| rowspan=2 | Robert Maynard Murray <small>(D)</small>
| rowspan=2 | Benjamin Le Fevre <small>(D)</small>
| rowspan=2 | George E. Seney <small>(D)</small>
| rowspan=3 | William D. Hill <small>(D)</small>
| | Henry L. Morey <small>(R)</small>
| rowspan=2 | J. Warren Keifer <small>(R)</small>
| rowspan=2 | James S. Robinson <small>(R)</small>
| rowspan=2 | Frank H. Hurd <small>(D)</small>
| rowspan=2 | John W. McCormick <small>(R)</small>
| rowspan=2 | Alphonso Hart <small>(R)</small>
| rowspan=2 | George L. Converse <small>(D)</small>
| rowspan=2 | George W. Geddes <small>(D)</small>
| rowspan=2 | Adoniram J. Warner <small>(D)</small>
| rowspan=2 | Beriah Wilkins <small>(D)</small>
| rowspan=2 | Joseph D. Taylor <small>(R)</small>
| | William McKinley <small>(R)</small>
| rowspan=7 | Ezra B. Taylor <small>(R)</small>
| rowspan=2 | David R. Paige <small>(D)</small>
| rowspan=4 | Martin A. Foran <small>(D)</small>
|- style="height:2em"
| | James E. Campbell <small>(D)</small>
| | Jonathan Wallace <small>(D)</small>
|- style="height:2em"
| 49th<br/><small>(1885–1887)</small>
| rowspan=3 | Benjamin Butter­worth <small>(R)</small>
| rowspan=2 | Charles Elwood Brown <small>(R)</small>
| | James E. Campbell <small>(D)</small>
| | Charles Anderson <small>(D)</small>
| | Benjamin Le Fevre <small>(D)</small>
| | George E. Seney <small>(D)</small>
| | John Little <small>(R)</small>
| rowspan=3 | William C. Cooper <small>(R)</small>
| rowspan=2 | Jacob Romeis <small>(R)</small>
| | William W. Ellsberry <small>(D)</small>
| | Albert C. Thompson <small>(R)</small>
| rowspan=3 | Joseph H. Outhwaite <small>(D)</small>
| | Charles H. Grosvenor <small>(R)</small>
| | Beriah Wilkins <small>(D)</small>
| | George Geddes <small>(D)</small>
| | Adoniram J. Warner <small>(D)</small>
| | Isaac H. Taylor <small>(R)</small>
| | William McKinley <small>(R)</small>
|- style="height:2em"
| 50th<br/><small>(1887–1889)</small>
| rowspan=2 | Elihu S. Williams <small>(R)</small>
| rowspan=2 | Samuel S. Yoder <small>(D)</small>
| rowspan=2 | George E. Seney <small>(D)</small>
| rowspan=2 | Melvin M. Booth­man <small>(R)</small>
| | James E. Campbell <small>(D)</small>
| rowspan=2 | Robert P. Kennedy <small>(R)</small>
| rowspan=2 | Albert C. Thompson <small>(R)</small>
| rowspan=2 | Jacob J. Pugsley <small>(R)</small>
| rowspan=2 | Charles Preston Wickham <small>(R)</small>
| rowspan=2 | Charles H. Grosvenor <small>(R)</small>
| | Beriah Wilkins <small>(D)</small>
| rowspan=2 | Joseph D. Taylor <small>(R)</small>
| rowspan=2 | William McKinley <small>(R)</small>
| | George Crouse <small>(R)</small>
|- style="height:2em"
| 51st<br/><small>(1889–1891)</small>
| rowspan=4 | John A. Caldwell <small>(R)</small>
| | Henry Lee Morey <small>(R)</small>
| | William Haynes <small>(D)</small>
| | James Owens <small>(D)</small>
| | Martin L. Smyser <small>(R)</small>
| | Theodore E. Burton <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 52nd<br/><small>(1891–1893)</small>
| rowspan=4 | Bellamy Storer <small>(R)</small>
| rowspan=3 | George W. Houk <small>(D)</small>
| rowspan=2 | Martin K. Gantz <small>(D)</small>
| rowspan=2 | Fernando C. Layton <small>(D)</small>
| rowspan=2 | Dennis D. Donovan <small>(D)</small>
| rowspan=2 | William E. Haynes <small>(D)</small>
| rowspan=2 | Darius D. Hare <small>(D)</small>
| rowspan=2 | Joseph H. Outhwaite <small>(D)</small>
| rowspan=2 | Robert E. Doan <small>(R)</small>
| rowspan=2 | John M. Pattison <small>(D)</small>
| rowspan=2 | William Enochs <small>(R)</small>
| rowspan=2 | James I. Dungan <small>(D)</small>
| rowspan=2 | James W. Owens <small>(D)</small>
| rowspan=2 | Michael D. Harter <small>(D)</small>
| | John G. Warwick <small>(D)</small>
| rowspan=2 | Albert J. Pearson <small>(D)</small>
| rowspan=2 | Joseph D. Taylor <small>(R)</small>
| rowspan=2 | Vincent A. Taylor <small>(R)</small>
| rowspan=4 | Tom L. Johnson <small>(D)</small>
|- style="height:2em"
| | Lewis P. Ohliger <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 53rd<br/><small>(1893–1895)</small>
| rowspan=3 | Fernando C. Layton <small>(D)</small>
| rowspan=2 | Dennis D. Donovan <small>(D)</small>
| rowspan=3 | George W. Hulick <small>(R)</small>
| rowspan=3 | George W. Wilson <small>(R)</small>
| rowspan=3 | Luther M. Strong <small>(R)</small>
| rowspan=2 | Byron F. Ritchie <small>(D)</small>
| | William Enochs <small>(R)</small>
| rowspan=11 | Charles H. Grosvenor <small>(R)</small>
| rowspan=2 | Joseph H. Outhwaite <small>(D)</small>
| rowspan=2 | Darius D. Hare <small>(D)</small>
| rowspan=2 | Michael D. Harter <small>(D)</small>
| rowspan=10 | H. Clay Van Voorhis <small>(R)</small>
| rowspan=2 | Albert J. Pearson <small>(D)</small>
| rowspan=2 | James A. D. Richards <small>(D)</small>
| rowspan=2 | George P. Ikirt <small>(D)</small>
| rowspan=4 | Stephen A. Northway <small>(R)</small>
| rowspan=2 | William J. White <small>(R)</small>
|- style="height:2em"
| rowspan=7 | Jacob H. Bromwell <small>(R)</small>
| rowspan=2 | Paul J. Sorg <small>(D)</small>
| | Hezekiah Bundy <small>(R)</small>
|- style="height:2em"
| 54th<br/><small>(1895–1897)</small>
| | Charles P. Taft <small>(R)</small>
| | Francis B. De Witt <small>(R)</small>
| rowspan=9 | James H. Southard <small>(R)</small>
| rowspan=3 | Lucien J. Fenton <small>(R)</small>
| | David K. Watson <small>(R)</small>
| | Stephen Ross Harris <small>(R)</small>
| rowspan=5 | Winfield S. Kerr <small>(R)</small>
| rowspan=4 | Lorenzo Danford <small>(R)</small>
| | Addison McClure <small>(R)</small>
| rowspan=6 | Robert Walker Tayler <small>(R)</small>
| rowspan=3 | Clifton B. Beach <small>(R)</small>
| rowspan=10 | Theodore E. Burton <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 55th<br/><small>(1897–1899)</small>
| rowspan=5 | William B. Shattuc <small>(R)</small>
| rowspan=4 | John Lewis Brenner <small>(D)</small>
| rowspan=2 | George Marshall <small>(D)</small>
| rowspan=4 | David Meekison <small>(D)</small>
| rowspan=4 | Seth W. Brown <small>(R)</small>
| rowspan=4 | Walter L. Weaver <small>(R)</small>
| rowspan=4 | Archibald Lybrand <small>(R)</small>
| rowspan=4 | John J. Lentz <small>(D)</small>
| rowspan=5 | James A. Norton <small>(D)</small>
| rowspan=4 | John A. McDowell <small>(D)</small>
|- style="height:2em"
| rowspan=5 | Charles W. F. Dick <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 56th<br/><small>(1899–1901)</small>
| rowspan=3 | Robert B. Gordon <small>(D)</small>
| rowspan=5 | Stephen Morgan <small>(R)</small>
| rowspan=2 | Fremont Phillips <small>(R)</small>
|- style="height:2em"
| rowspan=3 | Joseph J. Gill <small>(R)</small>
|- style="height:2em"
| 57th<br/><small>(1901–1903)</small>
| rowspan=4 | Robert M. Nevin <small>(R)</small>
| rowspan=3 | John S. Snook <small>(D)</small>
| rowspan=3 | Charles Q. Hilde­brant <small>(R)</small>
| rowspan=3 | Thomas B. Kyle <small>(R)</small>
| rowspan=3 | William R. Warnock <small>(R)</small>
| | Emmett Tompkins <small>(R)</small>
| rowspan=2 | William W. Skiles <small>(R)</small>
| rowspan=3 | John W. Cassing­ham <small>(D)</small>
| rowspan=4 | Jacob A. Beidler <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 58th<br/><small>(1903–1905)</small>
| rowspan=6 | Nicholas Long­worth <small>(R)</small>
| rowspan=5 | Herman P. Goebel <small>(R)</small>
| rowspan=3 | Harvey C. Garber <small>(D)</small>
| rowspan=2 | De Witt C. Badger <small>(D)</small>
| rowspan=2 | Amos H. Jackson <small>(R)</small>
| rowspan=5 | James Kennedy <small>(R)</small>
|- style="height:2em"
| rowspan=2 | Amos R. Webber <small>(R)</small>
| rowspan=3 | Capell L. Weems <small>(R)</small>
| rowspan=4 | W. Aubrey Thomas <small>(R)</small>
|- style="height:2em"
| 59th<br/><small>(1905–1907)</small>
| | William Campbell <small>(R)</small>
| | Thomas Scroggy <small>(R)</small>
| rowspan=3 | J. Warren Keifer <small>(R)</small>
| rowspan=3 | Ralph D. Cole <small>(R)</small>
| rowspan=2 | Henry T. Bannon <small>(R)</small>
| rowspan=4 | Edward L. Taylor Jr. <small>(R)</small>
| rowspan=2 | Grant E. Mouser <small>(R)</small>
| rowspan=2 | Beman Gates Dawes <small>(R)</small>
| | Martin L. Smyser <small>(R)</small>
|- style="height:2em"
| 60th<br/><small>(1907–1909)</small>
| | J. Eugene Harding <small>(R)</small>
| rowspan=2 | William E. Tou Velle <small>(D)</small>
| rowspan=3 | Timothy T. Ansberry <small>(D)</small>
| rowspan=3 | Matthew Denver <small>(D)</small>
| rowspan=3 | Isaac R. Sher­wood <small>(D)</small>
| rowspan=2 | Albert Douglas <small>(R)</small>
| | J. Ford Laning <small>(R)</small>
| rowspan=3 | William A. Ashbrook <small>(D)</small>
| rowspan=3 | L. Paul Howland <small>(R)</small>
|- style="height:2em"
| 61st<br/><small>(1909–1911)</small>
| rowspan=2 | James M. Cox <small>(D)</small>
| | Adna R. Johnson <small>(R)</small>
| rowspan=2 | Carl C. Anderson <small>(D)</small>
| rowspan=2 | William G. Sharp <small>(D)</small>
| | James Joyce <small>(R)</small>
| | David Hollings­worth <small>(R)</small>
| | James H. Cassidy <small>(R)</small>
|- style="height:2em"
| 62nd<br/><small>(1911–1913)</small>
| | Alfred G. Allen <small>(D)</small>
| | J. Henry Goeke <small>(D)</small>
| | James D. Post <small>(D)</small>
| | Frank B. Willis <small>(R)</small>
| | Robert Switzer <small>(R)</small>
| | Horatio Claypool <small>(D)</small>
| | George White <small>(D)</small>
| | William Francis <small>(D)</small>
| | John J. Whitacre <small>(D)</small>
| | Ellsworth Bathrick <small>(D)</small>
| | Robert Bulkley <small>(D)</small>
|}
1913–1933: 22 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan="21" | District
! rowspan=2 |
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| 63rd<br/><small>(1913–1915)</small>
| | Stanley Bowdle <small>(D)</small>
| rowspan=3 | Alfred G. Allen <small>(D)</small>
| rowspan=6 | Warren Gard <small>(D)</small>
| | J. Henry Goeke <small>(D)</small>
| | Timothy T. Ansberry <small>(D)</small>
| | Simeon D. Fess <small>(R)</small>
| | James D. Post <small>(D)</small>
| | Frank B. Willis <small>(R)</small>
| rowspan=6 | Isaac R. Sherwood <small>(D)</small>
| rowspan=5 | Robert M. Switzer <small>(R)</small>
| | Horatio Claypool <small>(D)</small>
| rowspan=6 | Clement Laird Brum­baugh <small>(D)</small>
| | John A. Key <small>(D)</small>
| | William G. Sharp <small>(D)</small>
| | George White <small>(D)</small>
| | William Francis <small>(D)</small>
| rowspan=6 | William A. Ashbrook <small>(D)</small>
| | John J. Whitacre <small>(D)</small>
| | Ellsworth Bathrick <small>(D)</small>
| rowspan=5 | William Gordon <small>(D)</small>
| | Robert Bulkley <small>(D)</small>
| | Robert Crosser <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 64th<br/><small>(1915–1917)</small>
| rowspan=11 | Nicholas Long­worth <small>(R)</small>
| rowspan=2 | J. Edward Russell <small>(R)</small>
| rowspan=2 | Nelson E. Matthews <small>(R)</small>
| rowspan=10 | Charles Cyrus Kearns <small>(R)</small>
| rowspan=6 | Simeon D. Fess <small>(R)</small>
| rowspan=4 | John A. Key <small>(D)</small>
| rowspan=2 | Edwin D. Ricketts <small>(R)</small>
| rowspan=4 | Arthur W. Overmyer <small>(D)</small>
| rowspan=2 | Seward Williams <small>(R)</small>
| rowspan=2 | William Mooney <small>(R)</small>
| rowspan=5 | Roscoe C. McCulloch <small>(R)</small>
| rowspan=4 | David Hollings­worth <small>(R)</small>
| rowspan=12 | John G. Cooper <small>(R)</small>
| rowspan=4 | Robert Crosser <small>(D)</small>
!
|- style="height:2em"
| rowspan=4 | Henry I. Emerson <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 65th<br/><small>(1917–1919)</small>
| rowspan=2 | Victor Heintz <small>(R)</small>
| rowspan=3 | Benjamin F. Welty <small>(D)</small>
| rowspan=2 | John S. Snook <small>(D)</small>
| rowspan=2 | Horatio Claypool <small>(D)</small>
| | Ellsworth Bathrick <small>(D)</small>
| rowspan=2 | George White <small>(D)</small>
|- style="height:2em"
| rowspan=2 | Martin L. Davey <small>(D)</small>
|- style="height:2em"
| 66th<br/><small>(1919–1921)</small>
| rowspan=4 | Ambrose E. B. Stephens <small>(R)</small>
| rowspan=6 | Charles J. Thompson <small>(R)</small>
| rowspan=3 | R. Clint Cole <small>(R)</small>
| rowspan=3 | Israel Moore Foster <small>(R)</small>
| rowspan=2 | Edwin D. Ricketts <small>(R)</small>
| rowspan=5 | James T. Begg <small>(R)</small>
| rowspan=8 | C. Ellis Moore <small>(R)</small>
| rowspan=8 | B. Frank Murphy <small>(R)</small>
| | Charles Mooney <small>(D)</small>
| | John J. Babka <small>(D)</small>
|- style="height:2em"
| 67th<br/><small>(1921–1923)</small>
| rowspan=5 | Roy G. Fitzgerald <small>(R)</small>
| rowspan=2 | John L. Cable <small>(R)</small>
| | William Chalmers <small>(R)</small>
| rowspan=5 | John C. Speaks <small>(R)</small>
| | C. L. Knight <small>(R)</small>
| | Joseph H. Himes <small>(R)</small>
| rowspan=5 | William M. Morgan <small>(R)</small>
| | Miner G. Norton <small>(R)</small>
| | Harry Gahn <small>(R)</small>
| rowspan=4 | Theodore E. Burton <small>(R)</small>
|- style="height:2em"
| 68th<br/><small>(1923–1925)</small>
| rowspan=6 | Charles Brand <small>(R)</small>
| | Isaac R. Sherwood <small>(D)</small>
| rowspan=6 | Mell G. Under­wood <small>(D)</small>
| rowspan=3 | Martin L. Davey <small>(D)</small>
| rowspan=3 | John McSweeney <small>(D)</small>
| rowspan=5 | Charles Mooney <small>(D)</small>
| rowspan=6 | Robert Crosser <small>(D)</small>
|- style="height:2em"
| 69th<br/><small>(1925–1927)</small>
| rowspan=2 | William T. Fitzgerald <small>(R)</small>
| rowspan=2 | Thomas B. Fletcher <small>(D)</small>
| rowspan=3 | William Chalmers <small>(R)</small>
| rowspan=5 | Thomas A. Jenkins <small>(R)</small>
|- style="height:2em"
| 70th<br/><small>(1927–1929)</small>
| | Charles Tatgen­horst <small>(R)</small>
|- style="height:2em"
| 71st<br/><small>(1929–1931)</small>
| rowspan=3 | William E. Hess <small>(R)</small>
| rowspan=3 | John L. Cable <small>(R)</small>
| rowspan=3 | Grant E. Mouser Jr. <small>(R)</small>
| | Joseph E. Baird <small>(R)</small>
| rowspan=3 | Francis Seiberling <small>(R)</small>
| rowspan=3 | Charles B. McClintock <small>(R)</small>
| rowspan=3 | Chester Bolton <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 72nd<br/><small>(1931–1933)</small>
| rowspan=2 | Byron B. Harlan <small>(D)</small>
| rowspan=2 | Frank C. Kniffin <small>(D)</small>
| rowspan=2 | James G. Polk <small>(D)</small>
| rowspan=2 | Wilbur M. White <small>(R)</small>
| rowspan=2 | Arthur P. Lamneck <small>(D)</small>
| rowspan=2 | William L. Fiesinger <small>(D)</small>
| rowspan=2 | Charles F. West <small>(D)</small>
|- style="height:2em"
| | John B. Hollister <small>(R)</small>
| | Martin Sweeney <small>(D)</small>
|}
1933–1943: 24 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan="22" | District
! rowspan=2 colspan=2 | At-large seats
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| 73rd<br/><small>(1933–1935)</small>
| rowspan=3 | John B. Hollister <small>(R)</small>
| rowspan=3 | William E. Hess <small>(R)</small>
| rowspan=5 | Byron B. Harlan <small>(D)</small>
| rowspan=4 | Frank Le Blond Kloeb <small>(D)</small>
| rowspan=5 | Frank C. Kniffin <small>(D)</small>
| rowspan=7 | James G. Polk <small>(D)</small>
| rowspan=3 | Leroy T. Marshall <small>(R)</small>
| rowspan=5 | Thomas B. Fletcher <small>(D)</small>
| rowspan=3 | Warren J. Duffey <small>(D)</small>
| rowspan=8 | Thomas A. Jenkins <small>(R)</small>
| rowspan=2 | Mell G. Under­wood <small>(D)</small>
| rowspan=5 | Arthur P. Lamneck <small>(D)</small>
| rowspan=3 | William L. Fiesinger <small>(D)</small>
| rowspan=8 | Dow W. Harter <small>(D)</small>
| rowspan=8 | Robert T. Secrest <small>(D)</small>
| rowspan=5 | William R. Thom <small>(D)</small>
| | Charles F. West <small>(D)</small>
| rowspan=5 | Lawrence E. Imhoff <small>(D)</small>
| rowspan=3 | John G. Cooper <small>(R)</small>
| rowspan=8 | Martin Sweeney <small>(D)</small>
| rowspan=8 | Robert Crosser <small>(D)</small>
| rowspan=3 | Chester Bolton <small>(R)</small>
| rowspan=2 | Charles V. Truax <small>(D)</small>
| rowspan=3 | Stephen M. Young <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 74th<br/><small>(1935–1937)</small>
| rowspan=5 | William A. Ash­brook <small>(D)</small>
|- style="height:2em"
| | Peter F. Ham­mond <small>(D)</small>
| | Daniel S. Earhart <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 75th<br/><small>(1937–1939)</small>
| rowspan=2 | Joseph A. Dixon <small>(D)</small>
| rowspan=2 | Herbert S. Bigelow <small>(D)</small>
| rowspan=2 | Arthur W. Aleshire <small>(D)</small>
| rowspan=5 | John F. Hunter <small>(D)</small>
| rowspan=5 | Harold K. Claypool <small>(D)</small>
| rowspan=4 | Dudley A. White <small>(R)</small>
| rowspan=5 | Michael J. Kirwan <small>(D)</small>
| rowspan=2 | Anthony A. Fleger <small>(D)</small>
| rowspan=2 | John McSwee­ney <small>(D)</small>
| rowspan=2 | Harold G. Mosier <small>(D)</small>
|- style="height:2em"
| | Walter Albaugh <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 76th<br/><small>(1939–1941)</small>
| rowspan=3 | Charles H. Elston <small>(R)</small>
| rowspan=3 | William E. Hess <small>(R)</small>
| rowspan=2 | Harry N. Rout­zohn <small>(R)</small>
| rowspan=3 | Robert Franklin Jones <small>(R)</small>
| rowspan=3 | Cliff Cleven­ger <small>(R)</small>
| rowspan=3 | Clarence J. Brown <small>(R)</small>
| rowspan=3 | Frederick C. Smith <small>(R)</small>
| rowspan=3 | John M. Vorys <small>(R)</small>
| rowspan=2 | James Sec­combe <small>(R)</small>
| rowspan=2 | Earl Ramage Lewis <small>(R)</small>
| | Chester Bolton <small>(R)</small>
| rowspan=3 | George Bender <small>(R)</small>
| rowspan=2 | L. L. Marshall <small>(R)</small>
|- style="height:2em"
| rowspan=2 | J. Harry McGregor <small>(R)</small>
| rowspan=2 | Frances P. Bolton <small>(R)</small>
|- style="height:2em"
| 77th<br/><small>(1941–1943)</small>
| | Greg J. Holbrock <small>(D)</small>
| | Jacob E. Davis <small>(D)</small>
| | A. David Baumhart Jr. <small>(R)</small>
| | William R. Thom <small>(D)</small>
| | Lawrence E. Imhoff <small>(D)</small>
| | Stephen M. Young <small>(D)</small>
|}
1943–1963: 23 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan="23" | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| 78th<br/><small>(1943–1945)</small>
| rowspan=7 | Charles H. Elston <small>(R)</small>
| rowspan=4 | William E. Hess <small>(R)</small>
| | Harry P. Jeffrey <small>(R)</small>
| rowspan=3 | Robert Franklin Jones <small>(R)</small>
| rowspan=11 | Cliff Cleven­ger <small>(R)</small>
| rowspan=4 | Edward Oscar McCowen <small>(R)</small>
| rowspan=14 | Clarence J. Brown <small>(R)</small>
| rowspan=5 | Frederick C. Smith <small>(R)</small>
| rowspan=4 | Homer A. Ramey <small>(R)</small>
| rowspan=11 | Thomas A. Jenkins <small>(R)</small>
| rowspan=7 | Walter E. Brehm <small>(R)</small>
| rowspan=11 | John M. Vorys <small>(R)</small>
| rowspan=9 | Alvin F. Weichel <small>(R)</small>
| | Edmund Rowe <small>(R)</small>
| rowspan=4 | Red Griffiths <small>(R)</small>
| | Henderson H. Carson <small>(R)</small>
| rowspan=11 | J. Harry McGregor <small>(R)</small>
| rowspan=4 | Earl Ramage Lewis <small>(R)</small>
| rowspan=14 | Michael J. Kirwan <small>(D)</small>
| rowspan=14 | Michael A. Feighan <small>(D)</small>
| rowspan=9 | Robert Crosser <small>(D)</small>
| rowspan=14 | Frances P. Bolton <small>(R)</small>
| rowspan=4 | George Bender <small>(R)</small>
|- style="height:2em"
| 79th<br/><small>(1945–1947)</small>
| | Edward J. Gardner <small>(D)</small>
| rowspan=4 | Walter B. Huber <small>(D)</small>
| | William R. Thom <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 80th<br/><small>(1947–1949)</small>
| rowspan=2 | Raymond H. Burke <small>(R)</small>
| rowspan=2 | Henderson H. Carson <small>(R)</small>
|- style="height:2em"
| rowspan=11 | William Moore McCul­loch <small>(R)</small>
|- style="height:2em"
| 81st<br/><small>(1949–1951)</small>
| | Earl T. Wagner <small>(D)</small>
| rowspan=2 | Edward G. Breen <small>(D)</small>
| rowspan=8 | James G. Polk <small>(D)</small>
| | Thomas Burke <small>(D)</small>
| rowspan=5 | Robert T. Secrest <small>(D)</small>
| | John McSwee­ney <small>(D)</small>
| rowspan=10 | Wayne Hays <small>(D)</small>
| | Stephen Young <small>(D)</small>
|- style="height:2em"
| rowspan=2 | 82nd<br/><small>(1951–1953)</small>
| rowspan=8 | William E. Hess <small>(R)</small>
| rowspan=9 | Jackson Edward Betts <small>(R)</small>
| rowspan=4 | Frazier Reams <small>(I)</small>
| rowspan=9 | William Hanes Ayres <small>(R)</small>
| rowspan=9 | Frank T. Bow <small>(R)</small>
| rowspan=2 | George Bender <small>(R)</small>
|- style="height:2em"
| rowspan=8 | Paul F. Schenck <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 83rd<br/><small>(1953–1955)</small>
| rowspan=7 | Gordon H. Scherer <small>(R)</small>
| rowspan=3 | Oliver P. Bolton <small>(R)</small>
!
|- style="height:2em"
| | George Bender <small>(R)</small>
|- style="height:2em"
| 84th<br/><small>(1955–1957)</small>
| rowspan=5 | Lud Ashley <small>(D)</small>
| rowspan=4 | A. David Baum­hart Jr. <small>(R)</small>
| rowspan=4 | John E. Hender­son <small>(R)</small>
| rowspan=5 | Charles Vanik <small>(D)</small>
| rowspan=5 | William Minshall Jr. <small>(R)</small>
|- style="height:2em"
| 85th<br/><small>(1957–1959)</small>
| | David S. Dennison Jr. <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 86th<br/><small>(1959–1961)</small>
| rowspan=3 | Del Latta <small>(R)</small>
| rowspan=3 | Walter H. Moeller <small>(D)</small>
| rowspan=3 | Robert E. Cook <small>(D)</small>
| rowspan=3 | Samuel L. Devine <small>(R)</small>
| rowspan=2 | Robert W. Levering <small>(D)</small>
|- style="height:2em"
| | Ward Miller <small>(R)</small>
|- style="height:2em"
| 87th<br/><small>(1961–1963)</small>
| | Donald Clancy <small>(R)</small>
| | Bill Harsha <small>(R)</small>
| | Charles Mosher <small>(R)</small>
| | Tom Moore­head <small>(R)</small>
| | John M. Ash­brook <small>(R)</small>
|}
1963–1973: 24 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Cong­ress
! colspan=24 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| 88th<br/><small>(1963–1965)</small>
| | Carl West Rich <small>(R)</small>
| rowspan=8 | Donald Clancy <small>(R)</small>
| | Paul F. Schenck <small>(R)</small>
| rowspan=8 | William Moore McCul­loch <small>(R)</small>
| rowspan=8 | Del Latta <small>(R)</small>
| rowspan=8 | Bill Harsha <small>(R)</small>
| rowspan=2 | Clarence J. Brown <small>(R)</small>
| rowspan=8 | Jackson Edward Betts <small>(R)</small>
| rowspan=8 | Lud Ashley <small>(D)</small>
| | Pete Abele <small>(R)</small>
| | Oliver P. Bolton <small>(R)</small>
| rowspan=8 | Samuel L. Devine <small>(R)</small>
| rowspan=8 | Charles Mosher <small>(R)</small>
| rowspan=7 | William Hanes Ayres <small>(R)</small>
| rowspan=3 | Robert T. Secrest <small>(D)</small>
| rowspan=8 | Frank T. Bow <small>(R)</small>
| rowspan=8 | John M. Ash­brook <small>(R)</small>
| rowspan=8 | Wayne Hays <small>(D)</small>
| rowspan=6 | Michael J. Kirwan <small>(D)</small>
| rowspan=7 | Michael A. Feighan <small>(D)</small>
| rowspan=5 | Charles Vanik <small>(D)</small>
| rowspan=5 | Frances P. Bolton <small>(R)</small>
| rowspan=8 | William Minshall Jr. <small>(R)</small>
| | Robert Taft Jr. <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 89th<br/><small>(1965–1967)</small>
| rowspan=2 | John J. Gilligan <small>(D)</small>
| rowspan=2 | Rodney M. Love <small>(D)</small>
| rowspan=2 | Walter H. Moeller <small>(D)</small>
| rowspan=7 | J. William Stanton <small>(R)</small>
| rowspan=2 | Robert E. Sweeney <small>(D)</small>
|- style="height:2em"
| rowspan=6 | Bud Brown <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 90th<br/><small>(1967–1969)</small>
| rowspan=4 | Robert Taft Jr. <small>(R)</small>
| rowspan=5 | Chuck Whalen Jr. <small>(R)</small>
| rowspan=5 | Clarence E. Miller <small>(R)</small>
| rowspan=5 | Chalmers Wylie <small>(R)</small>
!
|- style="height:2em"
| rowspan=3 | Buz Lukens <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 91st<br/><small>(1969–1971)</small>
| rowspan=3 | Louis Stokes <small>(D)</small>
| rowspan=3 | Charles Vanik <small>(D)</small>
|- style="height:2em"
| rowspan=2 | Charles J. Carney <small>(D)</small>
|- style="height:2em"
| 92nd<br/><small>(1971–1973)</small>
| | Bill Keating <small>(R)</small>
| | John F. Seiber­ling <small>(D)</small>
| | James V. Stanton <small>(D)</small>
| | Walter E. Powell <small>(R)</small>
|}
1973–1983: 23 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=23 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| rowspan=2 | 93rd<br/><small>(1973–1975)</small>
| | Bill<br/>Keating <small>(R)</small>
| rowspan=3 | Donald<br/>Clancy<br/><small>(R)</small>
| rowspan=4 | Chuck<br/>Whalen<br/>Jr. <small>(R)</small>
| rowspan=6 | Tennyson<br/>Guyer<br/><small>(R)</small>
| rowspan=7 | Del<br/>Latta<br/><small>(R)</small>
| rowspan=5 | Bill<br/>Harsha<br/><small>(R)</small>
| rowspan=7 | Bud<br/>Brown<br/><small>(R)</small>
| rowspan=2 | Walter<br/>Powell<br/><small>(R)</small>
| rowspan=5 | Lud<br/>Ashley<br/><small>(D)</small>
| rowspan=7 | Clarence<br/>E.<br/>Miller<br/><small>(R)</small>
| rowspan=7 | J.<br/>William<br/>Stanton<br/><small>(R)</small>
| rowspan=5 | Samuel<br/>L.<br/>Devine<br/><small>(R)</small>
| rowspan=3 | Charles<br />Mosher<br/><small>(R)</small>
| rowspan=7 | John F.<br/>Seiber­ling<br/><small>(D)</small>
| rowspan=7 | Chalmers<br/>Wylie <small>(R)</small>
| rowspan=7 | Ralph<br/>Regula<br/><small>(R)</small>
| rowspan=6 | John M.<br/>Ashbrook<br/><small>(R)</small>
| rowspan=3 | Wayne<br/>Hays<br/><small>(D)</small>
| rowspan=4 | Charles<br/>J.<br/>Carney<br/><small>(D)</small>
| rowspan=3 | James<br/>V.<br/>Stanton<br/><small>(D)</small>
| rowspan=7 | Louis<br/>Stokes<br/><small>(D)</small>
| rowspan=5 | Charles<br/>Vanik<br/><small>(D)</small>
| rowspan=2 | William<br/>Minshall<br/>Jr. <small>(R)</small>
|- style="height:2em"
| | Tom<br/>Luken <small>(D)</small>
|- style="height:2em"
| 94th<br/><small>(1975–1977)</small>
| rowspan=5 | Bill<br/>Gradison<br/><small>(R)</small>
| rowspan=5 | Tom<br/>Kindness<br/><small>(R)</small>
| rowspan=5 | Ronald<br/>M.<br/>Mottl<br/><small>(D)</small>
|- style="height:2em"
| 95th<br/><small>(1977–1979)</small>
| rowspan=4 | Tom<br/>Luken<br/><small>(D)</small>
| rowspan=4 | Don<br/>Pease<br/><small>(D)</small>
| rowspan=4 | Doug<br/>Apple­gate<br/><small>(D)</small>
| rowspan=4 | Mary<br/>Rose<br/>Oakar<br/><small>(D)</small>
|- style="height:2em"
| 96th<br/><small>(1979–1981)</small>
| rowspan=3 | Tony<br/>P.<br/>Hall<br/><small>(D)</small>
| rowspan=3 | Lyle<br/>Williams<br/><small>(R)</small>
|- style="height:2em"
| rowspan=2 | 97th<br/><small>(1981–1983)</small>
| rowspan=2 | Bob<br/>McEwen<br/><small>(R)</small>
| rowspan=2 | Ed<br/>Weber<br/><small>(R)</small>
| rowspan=2 | Bob<br/>Shaman­sky<br/><small>(D)</small>
| rowspan=2 | Dennis E.<br/>Eckart<br/><small>(D)</small>
|- style="height:2em"
| | Mike<br/>Oxley <small>(R)</small>
| | Jean S.<br/>Ashbrook <small>(R)</small>
|}
1983–1993: 21 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=21 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| 98th<br/><small>(1983–1985)</small>
| rowspan=4 | Tom<br/>Luken<br/><small>(D)</small>
| rowspan=5 | Bill<br/>Gradi­son<br/><small>(R)</small>
| rowspan=5 | Tony P.<br/>Hall <small>(D)</small>
| rowspan=5 | Mike<br/>Oxley<br/><small>(R)</small>
| rowspan=3 | Del<br/>Latta<br/><small>(R)</small>
| rowspan=5 | Bob<br/>McEwen<br/><small>(R)</small>
| rowspan=4 | Mike<br/>DeWine<br/><small>(R)</small>
| rowspan=2 | Tom<br/>Kindness<br/><small>(R)</small>
| rowspan=5 | Marcy<br/>Kaptur<br/><small>(D)</small>
| rowspan=5 | Clarence<br/>E.<br/>Miller<br/><small>(R)</small>
| rowspan=5 | Dennis<br/>E.<br/>Eckart<br/><small>(D)</small>
| rowspan=5 | John<br/>Kasich<br/><small>(R)</small>
| rowspan=5 | Don<br/>Pease<br/><small>(D)</small>
| rowspan=2 | John F.<br/>Sieber­ling<br/><small>(D)</small>
| rowspan=5 | Chalmers<br/>Wylie <small>(R)</small>
| rowspan=5 | Ralph<br/>Regula<br/><small>(R)</small>
| | Lyle<br/>Williams <small>(R)</small>
| rowspan=5 | Doug<br/>Apple­gate<br/><small>(D)</small>
| rowspan=5 | Ed<br/>Feighan<br/><small>(D)</small>
| rowspan=5 | Mary<br/>Rose<br/>Oakar<br/> <small>(D)</small>
| rowspan=5 | Louis<br/>Stokes<br/><small>(D)</small>
|- style="height:2em"
| 99th<br/><small>(1985–1987)</small>
| rowspan=4 | Jim<br/>Trafi­cant<br/><small>(D)</small>
|- style="height:2em"
| 100th<br/><small>(1987–1989)</small>
| rowspan=2 | Buz<br/>Lukens<br/><small>(R)</small>
| rowspan=3 | Tom<br/>Sawyer<br/><small>(D)</small>
|- style="height:2em"
| 101st<br/><small>(1989–1991)</small>
| rowspan=2 | Paul<br/>Gillmor<br/><small>(R)</small>
|- style="height:2em"
| 102nd<br/><small>(1991–1993)</small>
| | Charlie<br/>Luken <small>(D)</small>
| | Dave<br/>Hobson <small>(R)</small>
| | John<br/>Boehner <small>(R)</small>
|}
1993–2003: 19 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=19 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| rowspan=2 | 103rd
| rowspan=2 | David S.<br/>Mann <small>(D)</small>
| | Bill Gradison <small>(R)</small>
| rowspan=6 | Tony P.<br/>Hall<br/><small>(D)</small>
| rowspan=6 | Mike<br/>Oxley<br/><small>(R)</small>
| rowspan=6 | Paul<br/>Gill­mor<br/><small>(R)</small>
| rowspan=2 | Ted<br/>Strick­land <small>(D)</small>
| rowspan=6 | Dave<br/>Hobson<br/><small>(R)</small>
| rowspan=6 | John<br/>Boehner<br/><small>(R)</small>
| rowspan=6 | Marcy<br/>Kaptur<br/><small>(D)</small>
| rowspan=3 | Martin<br/>Hoke <small>(R)</small>
| rowspan=4 | Louis<br/>Stokes <small>(D)</small>
| rowspan=5 | John<br/>Kasich<br/><small>(R)</small>
| rowspan=6 | Sherrod<br/>Brown<br/><small>(D)</small>
| rowspan=6 | Tom<br/>Sawyer<br/><small>(D)</small>
| rowspan=6 | Deborah<br/>Pryce<br/><small>(R)</small>
| rowspan=6 | Ralph<br/>Regula<br/><small>(R)</small>
| rowspan=6 | Jim<br/>Traficant<br/><small>(D)</small>
| rowspan=2 | Doug<br/>Apple­gate <small>(D)</small>
| rowspan=2 | Eric<br/>Finger­hut <small>(D)</small>
|- style="height:1.5em"
| rowspan=5 | Rob<br/>Portman<br/><small>(R)</small>
|- style="height:2.5em"
| 104th
| rowspan=4 | Steve<br/>Chabot<br/><small>(R)</small>
| | Frank<br/>Cremeans <small>(R)</small>
| rowspan=4 | Bob<br/>Ney <small>(R)</small>
| rowspan=4 | Steve<br/>LaTourette<br/><small>(R)</small>
|- style="height:2.5em"
| 105th
| rowspan=3 | Ted<br/>Strick­land<br/><small>(D)</small>
| rowspan=3 | Dennis<br/>Kucinich<br/><small>(D)</small>
|- style="height:2.5em"
| 106th
| rowspan=2 | Stephanie<br/>Tubbs<br/>Jones <small>(D)</small>
|- style="height:2.5em"
| 107th
| | Pat Tiberi <small>(R)</small>
|}
2003–2013: 18 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=18 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2em"
| 108th<br/><small>(2003–2005)</small>
| rowspan=5 | Steve<br/>Chabot <small>(R)</small>
| rowspan=2 | Rob<br/>Portman<br/><small>(R)</small>
| rowspan=7 | Mike<br/>Turner<br/><small>(R)</small>
| rowspan=3 | Mike<br/>Oxley <small>(R)</small>
| rowspan=4 | Paul<br/>Gillmor<br/><small>(R)</small>
| rowspan=3 | Ted<br/>Strickland<br/><small>(D)</small>
| rowspan=5 | Dave<br/>Hobson<br/><small>(R)</small>
| rowspan=7 | John<br/>Boehner<br/><small>(R)</small>
| rowspan=7 | Marcy<br/>Kaptur<br/><small>(D)</small>
| rowspan=7 | Dennis<br/>Kucinich<br/><small>(D)</small>
| rowspan=4 | Stephanie<br/>Tubbs<br/>Jones <small>(D)</small>
| rowspan=7 | Pat<br/>Tiberi<br/><small>(R)</small>
| rowspan=3 | Sherrod<br/>Brown<br/><small>(D)</small>
| rowspan=7 | Steve<br/>LaTourette<br/><small>(R)</small>
| rowspan=5 | Deborah<br/>Pryce <small>(R)</small>
| rowspan=5 | Ralph<br/>Regula <small>(R)</small>
| rowspan=7 | Tim<br/>Ryan<br/><small>(D)</small>
| rowspan=3 | Bob<br/>Ney <small>(R)</small>
|- style="height:2em"
| rowspan=2 | 109th<br/><small>(2005–2007)</small>
|- style="height:2em"
| rowspan=5 | Jean<br/>Schmidt<br/><small>(R)</small>
|- style="height:2em"
| rowspan=2 | 110th<br/><small>(2007–2009)</small>
| rowspan=4 | Jim<br/>Jordan<br/><small>(R)</small>
| rowspan=3 | Charlie<br/>Wilson <small>(D)</small>
| rowspan=4 | Betty<br/>Sutton<br/><small>(D)</small>
| rowspan=3 | Zack<br/>Space <small>(D)</small>
|- style="height:2em"
| rowspan=3 | Bob<br/>Latta <small>(R)</small>
| rowspan=3 | Marcia<br/>Fudge <small>(D)</small>
|- style="height:2em"
| 111th<br/><small>(2009–2011)</small>
| | Steve<br/>Driehaus <small>(D)</small>
| rowspan=2 | Steve<br/>Austria<br/><small>(R)</small>
| | Mary Jo<br/>Kilroy <small>(D)</small>
| | John<br/>Boccieri <small>(D)</small>
|- style="height:2em"
| 112th<br/><small>(2011–2013)</small>
| | Steve<br/>Chabot <small>(R)</small>
| | Bill<br/>Johnson <small>(R)</small>
| | Steve<br/>Stivers <small>(R)</small>
| | Jim<br/>Renacci <small>(R)</small>
| | Bob<br/>Gibbs <small>(R)</small>
|}
2013–2023: 16 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=16 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| 113th
| rowspan=8 | Steve<br/>Chabot<br/><small>(R)</small>
| rowspan=8 | Brad<br/>Wenstrup<br/><small>(R)</small>
| rowspan=8 | Joyce<br/>Beatty<br/><small>(D)</small>
| rowspan=8 | Jim<br/>Jordan<br/><small>(R)</small>
| rowspan=8 | Bob<br/>Latta<br/><small>(R)</small>
| rowspan=8 | Bill<br/>Johnson<br/><small>(R)</small>
| rowspan=8 | Bob<br/>Gibbs<br/><small>(R)</small>
| rowspan=2 | John<br/>Boehner <small>(R)</small>
| rowspan=8 | Marcy<br/>Kaptur<br/><small>(D)</small>
| rowspan=8 | Mike<br/>Turner<br/><small>(R)</small>
| rowspan=7 | Marcia<br/>Fudge<br/><small>(D)</small>
| rowspan=4 | Pat<br/>Tiberi<br/><small>(R)</small>
| rowspan=8 | Tim<br/>Ryan<br/><small>(D)</small>
| rowspan=8 | David<br/>Joyce<br/><small>(R)</small>
| rowspan=7 | Steve<br/>Stivers<br/><small>(R)</small>
| rowspan=5 | Jim<br/>Renacci<br/><small>(R)</small>
|- style="height:1.5em"
| rowspan=2 | 114th
|- style="height:1.5em"
| rowspan=6 | Warren<br/>Davidson<br/><small>(R)</small>
|- style="height:1.5em"
| rowspan=2 | 115th
|- style="height:1.5em"
| rowspan=4 | Troy<br/>Balderson<br/><small>(R)</small>
|- style="height:2.5em"
| 116th
|rowspan=3 | Anthony<br/>Gonzalez<br/><small>(R)</small>
|- style="height:1.5em"
| rowspan=2 | 117th
|- style="height:2em"
| | Shontel<br/>Brown <small>(D)</small>
| | Mike<br/>Carey <small>(R)</small>
|}
2023–2033: 15 seats
{| class=wikitable style="text-align:center"
|- style="height:2em"
! rowspan=2 | Congress
! colspan=15 | District
|- style="height:2em"
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
|- style="height:2.5em"
| rowspan=2 | 118th
| rowspan=3 | Greg<br/>Landsman<br/><small>(D)</small>
| rowspan=2 | Brad<br/>Wenstrup<br/><small>(R)</small>
| rowspan=3 | Joyce<br/>Beatty<br/><small>(D)</small>
| rowspan=3 | Jim<br/>Jordan<br/><small>(R)</small>
| rowspan=3 | Bob<br/>Latta<br/><small>(R)</small>
| rowspan=1 | Bill<br/>Johnson<br/><small>(R)</small>
| rowspan=3 | Max<br/>Miller<br/><small>(R)</small>
| rowspan=3 | Warren<br/>Davidson<br/><small>(R)</small>
| rowspan=3 | Marcy<br/>Kaptur<br/><small>(D)</small>
| rowspan=3 | Mike<br/>Turner<br/><small>(R)</small>
| rowspan=3 | Shontel<br/>Brown<br/><small>(D)</small>
| rowspan=3 | Troy<br/>Balderson<br/><small>(R)</small>
| rowspan=3 | Emilia<br/>Sykes<br/><small>(D)</small>
| rowspan=3 | David<br/>Joyce<br/><small>(R)</small>
| rowspan=3 | Mike<br/>Carey<br/><small>(R)</small>
|- style="height:2.5em"
| rowspan=2| Michael<br/>Rulli<br/><small>(R)</small>
|- style="height:2.5em"
| rowspan=1 | 119th
| rowspan=1| David<br/>Taylor<br/><small>(R)</small>
|}
U.S. Senate
{| class="wikitable floatright" style="text-align: center;"
|-
! colspan=3 | Current U.S. senators from Ohio
|-
! rowspan=2 | <br/><br/>
{| class="wikitable"
! CPVI :
|-
|
|}
! Class I senator
! Class III senator
|- style="vertical-align: top;"
| x150px<br/>Bernie Moreno<br/><br>
| 149x149px<br/>Jon Husted<br/><br>
|-
! Party
|
|
|-
! Incumbent since
| January 3, 2025
| January 18, 2025
|}
{| class="wikitable sticky-header" style="text-align:center"
|- style="height:2em"
! colspan="2" | Class I senator
! Congress
! colspan="2" |Class III senator
|- style="height:2em"
| rowspan=3 | John Smith (DR)
| rowspan="4" style="background: #D3D3D3"|
| 8th (1803–1805)
| rowspan="2" style="background: #D3D3D3"|
| rowspan="2" | Thomas Worthington (DR)
|- style="height:2em"
| 9th (1805–1807)
|- style="height:1.25em"
|rowspan=2|10th (1807–1809)
| rowspan="5" |
| rowspan="2" | Edward Tiffin (DR)
|- style="height:1.25em"
| rowspan=2 | Return J. Meigs Jr. (DR)
|- style="height:2em"
| rowspan="5" |
|rowspan=2|11th (1809–1811)
| | Stanley Griswold (DR)
|- style="height:1.25em"
| rowspan=3 | Thomas Worthington (DR)
| rowspan=2 | Alexander Campbell (DR)
|- style="height:2em"
| 12th (1811–1813)
|- style="height:1.25em"
|rowspan=2 |13th (1813–1815)
| rowspan="4" style="background: #D3D3D3"|
| rowspan="4" | Jeremiah Morrow (DR)
|- style="height:2em"
| | Joseph Kerr (DR)
|- style="height:2em"
| rowspan=6 | Benjamin Ruggles (DR)
| rowspan="3" style="background: #D3D3D3"|
| 14th (1815–1817)
|- style="height:2em"
| 15th (1817–1819)
|- style="height:2em"
| 16th (1819–1821)
| rowspan="4" |
| rowspan="2" | William A. Trimble (DR)
|- style="height:1.25em"
| rowspan="4" |
|rowspan=2|17th (1821–1823)
|- style="height:2em"
| rowspan=2 | Ethan Allen Brown (DR)
|- style="height:2em"
| 18th (1823–1825)
|- style="height:2em"
| rowspan=5 | Benjamin Ruggles (NR)
| 19th (1825–1827)
| rowspan="4" style="background: #D3D3D3"|
| rowspan="2" | William Henry<br/>Harrison (NR)
|- style="height:1.25em"
| rowspan="4" style="background: #D3D3D3"|
|rowspan=2|20th (1827–1829)
|- style="height:1.25em"
| rowspan=2 | Jacob Burnet (NR)
|- style="height:2em"
| 21st (1829–1831)
|- style="height:2em"
| 22nd (1831–1833)
| rowspan="3" |
| rowspan="3" | Thomas Ewing (NR)
|- style="height:2em"
| rowspan=2 | Thomas Morris (J)
| rowspan="3" |
| 23rd (1833–1835)
|- style="height:2em"
| 24th (1835–1837)
|- style="height:2em"
| | Thomas Morris (D)
| 25th (1837–1839)
| rowspan="3" style="background: #D3D3D3"|
| rowspan=6 | William Allen (D)
|- style="height:2em"
| rowspan=3 | Benjamin Tappan (D)
| rowspan="3" style="background: #D3D3D3"|
| 26th (1839–1841)
|- style="height:2em"
| 27th (1841–1843)
|- style="height:2em"
| 28th (1843–1845)
| rowspan="3" |
|- style="height:2em"
| rowspan=3 | Thomas Corwin (W)
| rowspan="4" |
| 29th (1845–1847)
|- style="height:2em"
| 30th (1847–1849)
|- style="height:1.25em"
|rowspan=2 |31st (1849–1851)
| rowspan="4" style="background: #D3D3D3"|
| rowspan=4 | Salmon P. Chase (FS)
|- style="height:2em"
| | Thomas Ewing (W)
|- style="height:2em"
| rowspan="2" | Benjamin Wade (W)
| rowspan="3" style="background: #D3D3D3"|
| 32nd (1851–1853)
|- style="height:2em"
| 33rd (1853–1855)
|- style="height:2em"
| rowspan="8" | Benjamin Wade (R)
| 34th (1855–1857)
| rowspan="3" |
| rowspan=3 | George E. Pugh (D)
|- style="height:2em"
| rowspan="4" |
| 35th (1857–1859)
|- style="height:2em"
| 36th (1859–1861)
|- style="height:2em"
|rowspan=2 |37th (1861–1863)
| rowspan="4" style="background: #D3D3D3"|
| | Salmon P. Chase (R)
|- style="height:1.25em"
| rowspan=8 | John Sherman (R)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
| 38th (1863–1865)
|- style="height:2em"
| 39th (1865–1867)
|- style="height:2em"
| 40th (1867–1869)
| rowspan="3" |
|- style="height:2em"
| rowspan=6 | Allen G. Thurman (D)
| rowspan="3" |
| 41st (1869–1871)
|- style="height:2em"
| 42nd (1871–1873)
|- style="height:2em"
| 43rd (1873–1875)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
| 44th (1875–1877)
|- style="height:2em"
| 45th (1877–1879)
| | Stanley Matthews (R)
|- style="height:2em"
| 46th (1879–1881)
| rowspan="3" |
| rowspan=3 | George H. Pendleton (D)
|- style="height:2em"
| rowspan=8 | John Sherman (R)
| rowspan="3" |
| 47th (1881–1883)
|- style="height:2em"
| 48th (1883–1885)
|- style="height:2em"
| 49th (1885–1887)
| rowspan="3" style="background: #D3D3D3"|
| rowspan=3 | Henry B. Payne (D)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
| 50th (1887–1889)
|- style="height:2em"
| 51st (1889–1891)
|- style="height:2em"
| 52nd (1891–1893)
| rowspan="3" |
| rowspan=3 | Calvin S. Brice (D)
|- style="height:2em"
| rowspan="3" |
| 53rd (1893–1895)
|- style="height:2em"
| 54th (1895–1897)
|- style="height:2em"
| rowspan=4 | Mark Hanna (R)
| 55th (1897–1899)
| rowspan="3" style="background: #D3D3D3"|
| rowspan=7 | Joseph B. Foraker (R)
|- style="height:2em"
| rowspan="4" style="background: #D3D3D3"|
| 56th (1899–1901)
|- style="height:2em"
| 57th (1901–1903)
|- style="height:1.25em"
|rowspan=2|58th (1903–1905)
| rowspan="4" |
|- style="height:1.25em"
| rowspan=4 | Charles W. F. Dick (R)
|- style="height:2em"
| rowspan="3" |
| 59th (1905–1907)
|- style="height:2em"
| 60th (1907–1909)
|- style="height:2em"
| 61st (1909–1911)
| rowspan="3" style="background: #D3D3D3"|
| rowspan=3 | Theodore E. Burton (R)
|- style="height:2em"
| rowspan=7 | Atlee Pomerene (D)
| rowspan="3" style="background: #D3D3D3"|
| 62nd (1911–1913)
|- style="height:2em"
| 63rd (1913–1915)
|- style="height:2em"
| 64th (1915–1917)
| rowspan="4" |
| rowspan=3 | Warren G. Harding (R)
|- style="height:2em"
| rowspan="4" |
| 65th (1917–1919)
|- style="height:1.25em"
|rowspan=2|66th (1919–1921)
|- style="height:1.25em"
| rowspan=5 | Frank B. Willis (R)
|- style="height:2em"
| 67th (1921–1923)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan=10 | Simeon D. Fess (R)
| rowspan="5" style="background: #D3D3D3"|
| 68th (1923–1925)
|- style="height:2em"
| 69th (1925–1927)
|- style="height:1.25em"
|rowspan=3|70th (1927–1929)
| rowspan="7" |
|- style="height:2em"
| | Cyrus Locher (D)
|- style="height:1.25em"
| rowspan=2 | Theodore E. Burton (R)
|- style="height:1.25em"
| rowspan="5" |
|rowspan=3|71st (1929–1931)
|- style="height:2em"
| | Roscoe C. McCulloch (R)
|- style="height:1.25em"
| rowspan=5 | Robert J. Bulkley (D)
|- style="height:2em"
| 72nd (1931–1933)
|- style="height:2em"
| 73rd (1933–1935)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan=3 | Vic Donahey (D)
| rowspan="3" style="background: #D3D3D3"|
| 74th (1935–1937)
|- style="height:2em"
| 75th (1937–1939)
|- style="height:2em"
| 76th (1939–1941)
| rowspan="3" |
| rowspan="10" | Robert A. Taft (R)
|- style="height:2em"
| rowspan=3 | Harold H. Burton (R)
| rowspan="5" |
| 77th (1941–1943)
|- style="height:2em"
| 78th (1943–1945)
|- style="height:1.25em"
|rowspan=3 |79th (1945–1947)
| rowspan="5" style="background: #D3D3D3"|
|- style="height:2em"
| | James W. Huffman (D)
|- style="height:2em"
| | Kingsley A. Taft (R)
|- style="height:2em"
| rowspan=8 | John W. Bricker (R)
| rowspan="3" style="background: #D3D3D3"|
| 80th (1947–1949)
|- style="height:2em"
| 81st (1949–1951)
|- style="height:2em"
| 82nd (1951–1953)
| rowspan="5" |
|- style="height:1.25em"
| rowspan="5" |
|rowspan=3|83rd (1953–1955)
|- style="height:2em"
| | Thomas A. Burke (D)
|- style="height:1.25em"
| rowspan=2 | George H. Bender (R)
|- style="height:2em"
| 84th (1955–1957)
|- style="height:2em"
| 85th (1957–1959)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="6" | Frank Lausche (D)
|- style="height:2em"
| rowspan=6 | Stephen M. Young (D)
| rowspan="3" style="background: #D3D3D3"|
| 86th (1959–1961)
|- style="height:2em"
| 87th (1961–1963)
|- style="height:2em"
| 88th (1963–1965)
| rowspan="3" |
|- style="height:2em"
| rowspan="3" |
| 89th (1965–1967)
|- style="height:2em"
| 90th (1967–1969)
|- style="height:2em"
| 91st (1969–1971)
| rowspan="5" style="background: #D3D3D3"|
| rowspan=3 | William B. Saxbe (R)
|- style="height:2em"
| rowspan="5" | Robert Taft Jr. (R)
| rowspan="6" style="background: #D3D3D3"|
| 92nd (1971–1973)
|- style="height:1.25em"
|rowspan=3 |93rd (1973–1975)
|- style="height:2em"
| | Howard Metzenbaum (D)
|- style="height:1.25em"
| rowspan=14 | John Glenn (D)
|- style="height:1.25em"
| rowspan="2" |94th (1975–1977)
| rowspan="4" |
|- style="height:1.25em"
| rowspan="10" |Howard Metzenbaum (D)
|- style="height:2em"
| rowspan="3" |
|95th (1977–1979)
|- style="height:2em"
| 96th (1979–1981)
|- style="height:2em"
| 97th (1981–1983)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
| 98th (1983–1985)
|- style="height:2em"
| 99th (1985–1987)
|- style="height:2em"
| 100th (1987–1989)
| rowspan="3" |
|- style="height:2em"
| rowspan="3" |
| 101st (1989–1991)
|- style="height:2em"
| 102nd (1991–1993)
|- style="height:2em"
| 103rd (1993–1995)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan=6 | Mike DeWine (R)
| rowspan="3" style="background: #D3D3D3"|
| 104th (1995–1997)
|- style="height:2em"
| 105th (1997–1999)
|- style="height:2em"
| 106th (1999–2001)
| rowspan="3" |
| rowspan="6" | George Voinovich (R)
|- style="height:2em"
| rowspan="3" |
| 107th (2001–2003)
|- style="height:2em"
| 108th (2003–2005)
|- style="height:2em"
| 109th (2005–2007)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan=9 | Sherrod Brown (D)
| rowspan="3" style="background: #D3D3D3"|
| 110th (2007–2009)
|- style="height:2em"
| 111th (2009–2011)
|- style="height:2em"
| 112th (2011–2013)
| rowspan="3" |
| rowspan=6 | Rob Portman (R)
|- style="height:2em"
| rowspan="3" |
| 113th (2013–2015)
|- style="height:2em"
| 114th (2015–2017)
|- style="height:2em"
| 115th (2017–2019)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
| 116th (2019–2021)
|- style="height:2em"
| 117th (2021–2023)
|- style="height:2em"
| 118th (2023–2025)
| rowspan = "3" |
| rowspan=2 | JD Vance (R)
|- style="height:2em"
| rowspan=2 |Bernie Moreno (R)
| rowspan = "2" |
|rowspan=2 | 119th (2025–2027)
|- style="height:2em"
| | Jon Husted (R)
|}
Key
See also
- List of United States congressional districts
- Ohio's congressional districts
- Political party strength in Ohio