Washington State Senate seat · lines in effect since 2024
Washington Legislative District 25
A district of about 163,000 people, 28% of adults with a bachelor's degree. It votes D+1.5 relative to the nation for president.
2024 election
Nov 5, 2024- Chris Gildon (R) · won57.7%
- Kenneth King (D)42.2%
Source: Washington Secretary of StateUpdated Sep 30, 2026, 12:29 PM ET
Where it sits among all 49 seats
Every Washington State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
15 races since 1968. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2024 | |||
| 2024 | Chris Gildon (R) | Kenneth King (D) | 15.5 |
| Lines first used in 2012 | |||
| 2020 | Chris Gildon (R) | Julie Door (D) | 7.7 |
| 2016 | Hans Zeiger (R) | Karl Mecklenburg (D) | 18.7 |
| 2012 | Bruce Dammeier (R) | Eric Herde (D) | 23.5 |
| Lines first used in 2002 | |||
| 2008 | Jim Kastama (D) | Michele Smith (R) | 13.1 |
| 2004 | Jim Kastama (D) | Rosalie S. Hill (R) | 8.7 |
| Lines first used in 1992 | |||
| 2000 | Jim Kastama (D) | Joyce McDonald (R) | 0.9 |
| 1996 | Calvin Goings (D) | Grant Owen Pelesky (R) | 11.1 |
| 1992 | Marcus S. Gaspard (D) | Dan McDonald (R) | 20.4 |
| Lines first used in 1982 | |||
| 1988 | Marcus S. Gaspard (D) | Spanier (R) | 34.2 |
| 1984 | Marcus S. Gaspard (D) | Martin (R) | 24.7 |
| Lines first used in 1972 | |||
| 1980 | Marcus S. Gaspard (D) | Gary M. Johnson (R) | 26.0 |
| 1976 | Marcus S. Gaspard (D) | Bob Arnold (R) | 47.4 |
| 1972 | Reuben A. Knoblauch (D) | Ron Crowe (R) | 6.0 |
| Lines first used in 1962 | |||
| 1968 | Reuben A. Knoblauch (D) | John A. Fox (R) | 38.0 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 25
The state's districts in other chambers that share residents with this one, and the share of District 25's area in each.
- Washington House of Representatives
- LD-25 100%
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2020 | |
|---|---|
| President | D+1.8 |
| Governor | R+6.7 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 PM ET
Who lives here, compared
Grey bars show the spread of all 49 seats. Small marks are other seats in Washington. The black marker is District 25.
Lower than 77% of seats.
Higher than 73% of seats.
Higher than 65% of seats.
Higher than 79% of seats.
Higher than 52% of seats.
Denser than 67% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 1833% college gradsD+1.7Not up in 2026District 38
27% college gradsD+20.5Held DDistrict 31
30% college gradsR+7.2Held RDistrict 26
37% college gradsD+8.6Held D
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET