1978 general · November 7, 1978
1978 Delaware election results
Every race on Delaware's ballot in the 1978 general election: winners, margins and seats that changed party.
Races53
Changed party5
Unopposed23%12 races
Incumbents defeated3
U.S. Senate
D 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Delaware | Joseph Biden (D) | 16.9 |
U.S. House
R 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| DE-AL | Thomas B. Evans Jr. (R) | 17.0 |
Delaware State Senate
D 7 · R 3
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-2 | Herman M. Holloway Sr. (D) | Unopposed | |
| SD-3 | Robert I. Marshall (D) | 26.7 | |
| SD-4 | Robert J. Berndt (R) | 36.1 | |
| SD-5 | Charles E. Hughes (R) | 18.3 | |
| SD-7 | Andrew G. Knox (R) | Unopposed | |
| SD-9 | Thomas B. Sharp (D) | 17.8 | |
| SD-14 | Roger Martin (D) | 19.3 | |
| SD-17 | Jacob Zimmerman (D) | 9.1 | |
| SD-18 | William M. Murphy Jr. (D) | Unopposed | |
| SD-19 | Thurman Adams Jr. (D) | 28.2 |
Delaware House of Representatives
D 21 · R 20 · 5 changed party
Delaware
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Harvard Dataverse / Carl Klarner; MIT Election Data and Science Lab