Washington Senate District 18
Legislative (Senate) District 18
Covers part of Clark County.
Who Holds This Seat
Running in 2026
No 2026 candidates are on file for this seat yet.
The District
Includes Battle Ground, Brush Prairie, Salmon Creek, Duluth, Five Corners, Mount Vista, Orchards (part), Barberton, Dollars Corner, Meadow Glade, Felida, Hazel Dell (part) and 3 more.
122 precincts · District lines: State senate lines: U.S. Census Bureau (1:500,000 cartographic boundary) · Precinct lines: Washington Secretary of State, shapefile (sos.wa.gov, Sept 2026)
Results in This District
| Contest | First | Second | Margin | Votes | Source |
|---|---|---|---|---|---|
| 2024 President115 precinctsWashington Secretary of StateCertified — Washington Secretary of… | Kamala D. Harris / Tim Walz (D)44,256 · 49.6% | Donald J. Trump / JD Vance (R)42,049 · 47.1% | D+2.5 | 89,228 | Washington Secretary of StateCertified — Washington Secretary of… |
| 2024 U.S. Senate115 precinctsWashington Secretary of StateCertified — Washington Secretary of… | Maria Cantwell (D)43,936 · 51.6% | Dr Raul Garcia (R)40,984 · 48.1% | D+3.5 | 85,197 | Washington Secretary of StateCertified — Washington Secretary of… |
| 2024 Governor115 precinctsWashington Secretary of StateCertified — Washington Secretary of… | Dave Reichert (R)43,600 · 50.7% | Bob Ferguson (D)42,320 · 49.2% | R+1.5 | 86,035 | Washington Secretary of StateCertified — Washington Secretary of… |
| 2022 U.S. Senate113 precinctsWashington Secretary of StateCertified — Washington Secretary of… | Tiffany Smiley (R)33,875 · 50.9% | Patty Murray (D)32,590 · 49.0% | R+1.9 | 66,566 | Washington Secretary of StateCertified — Washington Secretary of… |
| 2020 President101 precinctsWashington Secretary of StateCertified — Washington Secretary of… | Joseph R. Biden / Kamala D. Harris (D)44,182 · 48.4% | Donald J. Trump / Michael R. Pence (R)44,178 · 48.4% | D+0.0 | 91,243 | Washington Secretary of StateCertified — Washington Secretary of… |
| 2020 Governor101 precinctsWashington Secretary of StateCertified — Washington Secretary of… | Loren Culp (R)46,498 · 51.6% | Jay Inslee (D)43,396 · 48.2% | R+3.4 | 90,125 | Washington Secretary of StateCertified — Washington Secretary of… |
Totals add up the certified precinct results for the precincts inside today's district lines. A precinct split by the district line counts in full, or only in the district holding most of its voters where the linkage assigns it to one, and votes a county reported only countywide (some counties' absentee and early votes) are left out, so totals can differ from an official canvass.
Past Results
Legislative District 18 - State Senator
2024 General Election · Nov 5, 2024| Candidate | Party | Votes | Share |
|---|---|---|---|
| Adrian CortesDemocrat | Democrat | 42,047 | 50.0% |
| Brad BentonRepublican | Republican | 41,878 | 49.8% |
| Write-in | 189 | 0.2% |
Certified — Washington Secretary of State official results (precinct export); King County: certified final (King County Elections canvass) · Washington Secretary of State — official election results, statewide precinct…
Legislative District 18 - State Senator
2020 General Election · Nov 3, 2020| Candidate | Party | Votes | Share |
|---|---|---|---|
| Ann RiversRepublican | Republican | 53,269 | 56.3% |
| Rick BellDemocrat | Democrat | 38,305 | 40.5% |
| Write-in | 3,041 | 3.2% |
Certified — Washington Secretary of State official results (precinct export); King County: certified final (King County Elections canvass) · Washington Secretary of State — official election results, statewide precinct…