2018 general · November 6, 2018
2018 Oklahoma U.S. House election results, district by district
Oklahoma's U.S. House races in the 2018 general election: winners, margins, unopposed seats and seats that changed party.
Races5
Changed party1
Unopposed0%0 races
Every district
D 1 · R 4
| Race | Winner | Won by | Notes |
|---|---|---|---|
| OK-1 | Kevin Hern (R) | 18.6 | |
| OK-2 | Markwayne Mullin (R) | 34.9 | |
| OK-3 | Frank Lucas (R) | 47.7 | |
| OK-4 | Tom Cole (R) | 30.1 | |
| OK-5 | Kendra S. Horn (D) | 1.4 | Flipped |
Oklahoma
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: MIT Election Data and Science Lab