| House 1 Pos. 1 | Derek Stanford (D) 60.97% | Neil Thannisch (R) 39.03% | |
| House 1 Pos. 2 | Shelley Kloba (D) 55.18% | Jim Langston (R) 44.82% | |
| House 2 Pos. 1 | Andrew Barkis (R) 58.2% | Amy Pivetta Hoffman (I) 41.8% | |
| House 2 Pos. 2 | J.T. Wilcox (R) 65.66% | Derek Maynes (D) 34.34% | |
| House 3 Pos. 1 | Marcus Riccelli (D) 67.31% | Randy McGlenn II (L) 32.69% | |
| House 3 Pos. 2 | Timm Ormsby (D) 62.09% | Laura Carder (R) 37.91% | |
| House 4 Pos. 1 | Matthew Shea (R) 64.64% | Scott V. Stucker (D) 35.36% | |
| House 4 Pos. 2 | Bob McCaslin, Jr. (R) 100% | Unopposed | |
| House 5 Pos. 1 | Jay Rodne (R) 51.94% | Jason Ritchie (D) 48.06% | |
| House 5 Pos. 2 | Paul Graves (R) 53.75% | Darcy Burner (D) 46.25% | |
| House 6 Pos. 1 | Mike Volz (R) 55.34% | Lynnette Vehrs (D) 44.66% | |
| House 6 Pos. 2 | Jeff Holy (R) 62.93% | Shar Lichty (D) 37.07% | |
| House 7 Pos. 1 | Shelly Short (R) 100% | Unopposed | |
| House 7 Pos. 2 | Joel Kretz (R) 76.86% | Mike Foster (L) 23.14% | |
| House 8 Pos. 1 | Brad Klippert (R) 58.67% | Rick Jansons (R) 41.33% | |
| House 8 Pos. 2 | Larry Haler (R) 59.84% | Steve Simmons (R) 40.16% | |
| House 9 Pos. 1 | Mary Dye (R) 66.51% | Jenn Goulet (D) 33.49% | |
| House 9 Pos. 2 | Joe Schmick (R) 100% | Unopposed | |
| House 10 Pos. 1 | Norma Smith (R) 71.95% | Michael Scott (L) 28.05% | |
| House 10 Pos. 2 | Dave Hayes (R) 59.08% | Doris Brevoort (D) 40.92% | |
| House 11 Pos. 1 | Zack Hudgins (D) 67.82% | Erin Smith Aboudara (R) 32.18% | |
| House 11 Pos. 2 | Steve Bergquist (D) 100% | Unopposed | |
| House 12 Pos. 1 | Cary Condotta (R) 62.92% | Dan Maher (D) 37.08% | |
| House 12 Pos. 2 | Mike Steele (R) 60.18% | Jerry Paine (R) 39.82% | |
| House 13 Pos. 1 | Tom Dent (R) 100% | Unopposed | |
| House 13 Pos. 2 | Matt Manweller (R) 70.74% | Jordan Webb (D) 29.26% | |
| House 14 Pos. 1 | Norm Johnson (R) 66.05% | Susan Soto Palmer (D) 33.95% | |
| House 14 Pos. 2 | Gina McCabe (R) 68.54% | John (Eric) Adams (D) 31.46% | |
| House 15 Pos. 1 | Bruce Chandler (R) 100% | Unopposed | |
| House 15 Pos. 2 | David V. Taylor (R) 60.21% | AJ Cooper (D) 39.79% | |
| House 16 Pos. 1 | Bill Jenkin (R) 62.03% | Rebecca Francik (D) 37.97% | |
| House 16 Pos. 2 | Terry Nealey (R) 67.94% | Gary Downing (D) 32.06% | |
| House 17 Pos. 1 | Vicki Kraft (R) 51.66% | Sam Kim (I) 48.34% | |
| House 17 Pos. 2 | Paul Harris (R) 63.1% | Martin Hash (D) 36.9% | |
| House 18 Pos. 1 | Brandon Vick (R) 63.35% | Justin Oberg (D) 36.65% | |
| House 18 Pos. 2 | Liz Pike (R) 56.82% | Kathy Gillespie (I) 43.18% | |
| House 19 Pos. 1 | Jim Walsh (R) 50.49% | Teresa Purcell (D) 49.51% | Flipped D to R |
| House 19 Pos. 2 | Brian Blake (D) 59.91% | Jimi O'Hagan (R) 40.09% | Flipped D to R |
| House 20 Pos. 1 | Richard DeBolt (R) 100% | Unopposed | |
| House 20 Pos. 2 | Ed Orcutt (R) 100% | Unopposed | |
| House 21 Pos. 1 | Strom Peterson (D) 72.19% | Alex Hels (L) 27.81% | |
| House 21 Pos. 2 | Lillian Ortiz-Self (D) 61.93% | Jeff Scherrer (R) 38.07% | |
| House 22 Pos. 1 | Laurie Dolan (D) 66.32% | Donald Austin (R) 33.68% | |
| House 22 Pos. 2 | Beth Doglio (D) 100% | Unopposed | |
| House 23 Pos. 1 | Sherry Appleton (D) 57.23% | Loretta Byrnes (R) 42.77% | |
| House 23 Pos. 2 | Drew Hansen (D) 100% | Unopposed | |
| House 24 Pos. 1 | Mike Chapman (D) 60.9% | George Vrable (R) 39.1% | |
| House 24 Pos. 2 | Steve Tharinger (D) 56.85% | John D. Alger (R) 43.15% | |
| House 25 Pos. 1 | Melanie Stambaugh (R) 58.58% | Jamie Smith (D) 41.42% | |
| House 25 Pos. 2 | Joyce McDonald (R) 56.19% | Michelle Chatterton (D) 43.81% | |
| House 26 Pos. 1 | Jesse L. Young (R) 56.87% | Larry Seaquist (I) 43.13% | |
| House 26 Pos. 2 | Michelle Caldier (R) 58.94% | Randy Spitzer (I) 41.06% | |
| House 27 Pos. 1 | Laurie Jinkins (D) 100% | Unopposed | |
| House 27 Pos. 2 | Jake Fey (D) 100% | Unopposed | |
| House 28 Pos. 1 | Dick Muri (R) 52.1% | Mari Leavitt (D) 47.9% | |
| House 28 Pos. 2 | Christine Kilduff (D) 54.72% | Paul Wagemann (R) 45.28% | |
| House 29 Pos. 1 | David Sawyer (D) 59.28% | Rick Thomas (I) 40.72% | |
| House 29 Pos. 2 | Steve Kirby (D) 60.78% | Jessica Garcia (R) 39.22% | |
| House 30 Pos. 1 | Mike Pellicciotti (D) 54.42% | Linda Kochmar (R) 45.58% | Flipped R to D; Incumbent defeated |
| House 30 Pos. 2 | Kristine Reeves (D) 51.1% | Teri Hickel (R) 48.9% | Flipped R to D; Incumbent defeated |
| House 31 Pos. 1 | Drew Stokesbary (R) 71.59% | John Frostad (L) 28.41% | Flipped D to R |
| House 31 Pos. 2 | Phil Fortunato (R) 57.73% | Lane Walthers (I) 42.27% | Flipped D to R |
| House 32 Pos. 1 | Cindy Ryu (D) 75.84% | Alvin A. Rutledge (R) 24.16% | |
| House 32 Pos. 2 | Ruth Kagi (D) 72.56% | David D. Schirle (R) 27.44% | |
| House 33 Pos. 1 | Tina Orwall (D) 70.03% | John Potter (R) 29.97% | |
| House 33 Pos. 2 | Mia Gregerson (D) 65.42% | Pamela Pollock (R) 34.58% | |
| House 34 Pos. 1 | Eileen Cody (D) 80.62% | Matthew Benson (R) 19.38% | |
| House 34 Pos. 2 | Joe Fitzgibbon (D) 79.75% | Andrew Pilloud (R) 20.25% | |
| House 35 Pos. 1 | Dan Griffey (R) 54.99% | Irene Bowling (I) 45.01% | |
| House 35 Pos. 2 | Drew C. MacEwen (R) 54.21% | Craig Patti (I) 45.79% | |
| House 36 Pos. 1 | Noel Frame (D) 100% | Unopposed | |
| House 36 Pos. 2 | Gael Tarleton (D) 100% | Unopposed | |
| House 37 Pos. 1 | Sharon Tomiko Santos (D) 90.91% | John Dickinson (Nonpartisan) 9.09% | |
| House 37 Pos. 2 | Eric Pettigrew (D) 86.44% | Tamra Smilanich (Nonpartisan) 13.56% | |
| House 38 Pos. 1 | June Robinson (D) 100% | Unopposed | |
| House 38 Pos. 2 | Mike Sells (D) 62.35% | Bert Johnson (I) 37.65% | |
| House 39 Pos. 1 | Dan Kristiansen (R) 61.67% | Linda Wright (D) 38.33% | |
| House 39 Pos. 2 | John Koster (R) 60.96% | Ronda Metcalf (D) 39.04% | |
| House 40 Pos. 1 | Kristine Lytton (D) 100% | Unopposed | |
| House 40 Pos. 2 | Jeff Morris (D) 100% | Unopposed | |
| House 41 Pos. 1 | Tana Senn (D) 64.5% | John Pass (R) 35.5% | |
| House 41 Pos. 2 | Judy Clibborn (D) 61.65% | Michael Appleby (R) 38.35% | |
| House 42 Pos. 1 | Luanne Van Werven (R) 54.61% | Sharlaine LaClair (D) 45.39% | |
| House 42 Pos. 2 | Vincent Buys (R) 57.9% | Tracy Atwood (D) 42.1% | |
| House 43 Pos. 1 | Nicole Macri (D) 65.45% | Dan Shih (D) 34.55% | |
| House 43 Pos. 2 | Frank Chopp (D) 100% | Unopposed | |
| House 44 Pos. 1 | John Lovick (D) 51.98% | Janice Huxford (R) 48.02% | |
| House 44 Pos. 2 | Mark Harmsworth (R) 54.55% | Katrina Ondracek (D) 45.45% | |
| House 45 Pos. 1 | Roger Goodman (D) 61.87% | Ramiro Valderrama (R) 38.13% | |
| House 45 Pos. 2 | Larry Springer (D) 100% | Unopposed | |
| House 46 Pos. 1 | Gerry Pollet (D) 84.88% | Stephanie Heart Viskovich (L) 15.12% | |
| House 46 Pos. 2 | Jessyn Farrell (D) 100% | Unopposed | |
| House 47 Pos. 1 | Mark Hargrove (R) 57.08% | Brooke Valentine (D) 42.92% | |
| House 47 Pos. 2 | Pat Sullivan (D) 58.01% | Barry Knowles (R) 41.99% | |
| House 48 Pos. 1 | Patty Kuderer (D) 70.12% | Michelle Darnell (L) 29.88% | |
| House 48 Pos. 2 | Joan McBride (D) 72.64% | Benjamin Judah Phelps (L) 27.36% | |
| House 49 Pos. 1 | Sharon Wylie (D) 72.21% | Kaitlyn Beck (D) 27.79% | |
| House 49 Pos. 2 | Monica Stonier (D) 55.14% | Alishia Topper (D) 44.86% | |
| Senate 1 | Guy Palumbo (D) 56.92% | Mindie Wirth (R) 43.08% | |
| Senate 2 | Randi Becker (R) 61.35% | Marilyn Rasmussen (D) 38.65% | |
| Senate 3 | Andy Billig (D) 67.32% | James R. Apker (L) 32.68% | |
| Senate 4 | Mike Padden (R) | Unopposed | |
| Senate 5 | Mark Mullet (D) | Chad Magendanz (R) | |
| Senate 9 | Mark Schoesler (R) 100% | Unopposed | |
| Senate 10 | Barbara Bailey (R) 56.7% | Angie Homola (D) 43.3% | |
| Senate 11 | Bob Hasegawa (D) 76.36% | Dennis Price (L) 23.64% | |
| Senate 12 | Brad Hawkins (R) 56.01% | Jon Wyss (R) 43.99% | |
| Senate 14 | Curtis King (R) 61.02% | Amanda Richards (I) 38.98% | |
| Senate 16 | Maureen Walsh (R) 100% | Unopposed | |
| Senate 17 | Lynda Wilson (R) 55.11% | Tim Probst (I) 44.89% | |
| Senate 18 | Anne Rivers (R) 63.81% | Eric K. Holt (D) 36.19% | |
| Senate 19 | Dean Takko (D) 55.17% | Sue Kuehl Pederson (I) 44.83% | |
| Senate 20 | John Braun (R) 100% | Unopposed | |
| Senate 22 | Sam Hunt (D) 66.62% | Steve Owens (Nonpartisan) 33.38% | |
| Senate 23 | Christine Rolfes (D) 100% | Unopposed | |
| Senate 24 | Kevin Van De Wege (D) 56.56% | Danille Turissini (I) 43.44% | |
| Senate 25 | Hans Zeiger (R) 59.33% | Karl Mecklenburg (D) 40.67% | |
| Senate 27 | Jeannie Darneille (D) 69.26% | Greg Taylor (R) 30.74% | |
| Senate 28 | Steve O'Ban (R) 52.9% | Marisa Peloquin (D) 47.1% | |
| Senate 36 | Reuven Carlyle (D) | Unopposed | |
| Senate 39 | Kirk D. Pearson (R) | Unopposed | |
| Senate 40 | Kevin Ranker (D) | Daniel Miller (R) | |
| Senate 41 | Lisa Wellman (D) | Steve Litzow (R) | Flipped R to D; Incumbent defeated |
| Senate 49 | Annette Cleveland (D) | Lewis Gerhardt (R) | |