1978 general · November 7, 1978
1978 Ohio election results
Every race on Ohio's ballot in the 1978 general election: winners, margins and seats that changed party.
Races140
Changed party10
Unopposed6%9 races
Incumbents defeated3
Governors
R 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Ohio | James A. Rhodes (R) | 1.7 |
U.S. House
D 10 · R 13 · 2 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| OH-1 | Willis Gradison (R) | 30.6 | |
| OH-2 | Thomas Luken (D) | 4.7 | |
| OH-3 | Tony Hall (D) | 9.4 | Flipped |
| OH-4 | Tennyson Guyer (R) | 37.0 | |
| OH-5 | Delbert L. Latta (R) | 25.2 | |
| OH-6 | William H. Harsha (R) | 29.8 | |
| OH-7 | Clarence J. Brown (R) | Unopposed | |
| OH-8 | Thomas N. Kindness (R) | 42.8 | |
| OH-9 | Thomas Ludlow Ashley (D) | 33.0 | |
| OH-10 | Clarence Miller (R) | 47.8 | |
| OH-11 | J. William Stanton (R) | 39.8 | |
| OH-12 | Samuel L. Devine (R) | 13.9 | |
| OH-13 | Donald Pease (D) | 30.3 | |
| OH-14 | John F. Seiberling (D) | 44.9 | |
| OH-15 | Chalmers Wylie (R) | 42.2 | |
| OH-16 | Ralph Regula (R) | 56.0 | |
| OH-17 | John M. Ashbrook (R) | 34.8 | |
| OH-18 | Douglas Applegate (D) | 19.0 | |
| OH-19 | Lyle Williams (R) | 1.3 | Flipped |
| OH-20 | Mary Oakar (D) | Unopposed | |
| OH-21 | Louis Stokes (D) | 72.2 | |
| OH-22 | Charles A. Vanik (D) | 42.7 | |
| OH-23 | Ronald M. Mottl (D) | 49.5 |
Ohio State Senate
D 9 · R 8 · 3 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-1 | M. Ben Gaeth (R) | 29.4 | |
| SD-3 | Theodore M. Gray (R) | 32.8 | |
| SD-5 | Neal F. Zimmers (D) | 40.4 | |
| SD-7 | Richard H. Finan (R) | 28.9 | |
| SD-9 | William F. Bowen (D) | 52.4 | |
| SD-11 | Marigene Valiquette (D) | 50.7 | |
| SD-13 | Ronald L. Nabakowski (D) | 8.5 | |
| SD-15 | John Kasich (R) | 11.8 | FlippedIncumbent lost |
| SD-17 | Oakley C. Collins (R) | 22.6 | |
| SD-19 | Thomas A. Vanmeter (R) | 40.4 | |
| SD-21 | M. Morris Jackson (D) | 60.2 | |
| SD-23 | Charles L. Butts (D) | Unopposed | |
| SD-25 | Paul R. Matia (R) | 11.2 | Flipped |
| SD-27 | Oliver Ocasek (D) | 43.9 | |
| SD-29 | Thomas F. Walsh (R) | 1.5 | FlippedIncumbent lost |
| SD-31 | John Timothy McCormack (D) | 46.7 | |
| SD-33 | Harry Meshel (D) | 46.5 |
Ohio House of Representatives
D 62 · R 37 · 5 changed party
Ohio
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse); Harvard Dataverse / Carl Klarner; MIT Election Data and Science Lab