1978 general · November 7, 1978
1978 Iowa election results
Every race on Iowa's ballot in the 1978 general election: winners, margins and seats that changed party.
Races133
Changed party27
Unopposed17%23 races
Incumbents defeated13
U.S. Senate
R 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Iowa | Roger W. Jepsen (R) | 3.2 |
Governors
R 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Iowa | Robert E. Ray (R) | 17.5 |
U.S. House
D 3 · R 3 · 1 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| IA-1 | James Leach (R) | 27.7 | |
| IA-2 | Thomas Tauke (R) | 5.2 | Flipped |
| IA-3 | Chuck Grassley (R) | 49.6 | |
| IA-4 | Neal Smith (D) | 29.4 | |
| IA-5 | Tom Harkin (D) | 17.9 | |
| IA-6 | Berkley Bedell (D) | 32.6 |
Iowa State Senate
D 8 · R 17 · 6 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-1 | Lucas J. Dekoster (R) | 26.0 | |
| SD-3 | Arne Waldstein (R) | 7.1 | |
| SD-5 | Ray Taylor (R) | 20.0 | |
| SD-7 | Arthur L. Gratias (R) | 9.8 | FlippedIncumbent lost |
| SD-9 | Dale L. Tieden (R) | Unopposed | |
| SD-11 | Stephen N. Bisenius (R) | 8.7 | Flipped |
| SD-13 | A. R. Kudart (R) | 15.1 | Flipped |
| SD-15 | Bob Rush (D) | 9.2 | |
| SD-17 | Richard Comito (R) | 3.0 | FlippedIncumbent lost |
| SD-19 | John W. Jensen (R) | 23.7 | |
| SD-21 | John S. Murray (R) | 25.4 | |
| SD-23 | C. Joseph Coleman (D) | Unopposed | |
| SD-25 | Clarence Carney (R) | 10.2 | |
| SD-27 | Jack W. Hester (R) | 14.7 | Flipped |
| SD-29 | Norman Rodgers (D) | 10.3 | |
| SD-31 | Earl M. Willits (D) | 26.4 | |
| SD-33 | Julia B. Gentleman (R) | 27.3 | |
| SD-35 | Joe Brown (D) | 12.0 | |
| SD-37 | Arthur A. Small Jr. (D) | 29.3 | |
| SD-39 | Norman J. Goodwin (R) | 18.8 | |
| SD-41 | Patrick J. Deluhery (D) | 14.0 | |
| SD-43 | Lowell L. Junkins (D) | 27.0 | |
| SD-45 | Sue Yenger (R) | 3.2 | FlippedIncumbent lost |
| SD-47 | Richard R. Ramsey (R) | 20.5 | |
| SD-49 | Calvin O. Hultman (R) | 32.5 |
Iowa House of Representatives
D 44 · R 56 · 20 changed party
Iowa
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