2018 general · November 6, 2018
2018 Washington election results
Every race on Washington's ballot in the 2018 general election: winners, margins and seats that changed party.
Races134
Changed party12
Unopposed11%15 races
Incumbents defeated9
U.S. Senate
D 1
| Race | Winner | Won by | Notes |
|---|---|---|---|
| Washington | Maria Cantwell (D) | 16.9 |
U.S. House
D 7 · R 3 · 1 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| WA-1 | Suzan DelBene (D) | 18.5 | |
| WA-2 | Rick Larsen (D) | 42.6 | |
| WA-3 | Jaime Herrera Beutler (R) | 5.4 | |
| WA-4 | Dan Newhouse (R) | 25.6 | |
| WA-5 | Cathy McMorris Rodgers (R) | 9.5 | |
| WA-6 | Derek Kilmer (D) | 27.8 | |
| WA-7 | Pramila Jayapal (D) | 66.9 | |
| WA-8 | Kim Schrier (D) | 4.8 | Flipped |
| WA-9 | Adam Smith (D) | 34.7 | |
| WA-10 | Denny Heck (D) | 23.1 |
Washington State Senate
D 17 · R 8 · 4 changed party
| Race | Winner | Won by | Notes |
|---|---|---|---|
| LD-6 | Jeff Holy (R) | 9.7 | |
| LD-7 | Shelly Short (R) | 38.0 | |
| LD-8 | Sharon Brown (R) | 35.1 | |
| LD-13 | Judy Warnick (R) | Unopposed | |
| LD-15 | Jim Honeyford (R) | 21.1 | |
| LD-21 | Marko Liias (D) | 26.3 | |
| LD-26 | Emily Randall (D) | 0.1 | Flipped |
| LD-29 | Steve Conway (D) | 26.1 | |
| LD-30 | Claire Wilson (D) | 8.5 | FlippedIncumbent lost |
| LD-31 | Phil Fortunato (R) | 19.8 | |
| LD-32 | Jesse Salomon (D) | 37.9 | Incumbent lost |
| LD-33 | Karen Keiser (D) | 43.5 | |
| LD-34 | Joe Nguyen (D) | 16.3 | |
| LD-35 | Tim Sheldon (D) | 4.1 | |
| LD-36 | Reuven Carlyle (D) | 77.9 | |
| LD-37 | Rebecca Saldaña (D) | 77.9 | |
| LD-38 | John McCoy (D) | 19.6 | |
| LD-39 | Keith Wagoner (R) | 17.9 | |
| LD-42 | Doug Ericksen (R) | 0.1 | |
| LD-43 | Jamie Pedersen (D) | 80.8 | |
| LD-44 | Steve Hobbs (D) | 12.2 | |
| LD-45 | Manka Dhingra (D) | 26.8 | Flipped |
| LD-46 | David Frockt (D) | 64.9 | |
| LD-47 | Mona Das (D) | 1.8 | FlippedIncumbent lost |
| LD-48 | Patty Kuderer (D) | 29.6 |
Washington House of Representatives
D 57 · R 41 · 7 changed party
Washington
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