Washington State Senate seat · lines in effect since 2024
Washington Legislative District 4
A district of about 135,000 people, 27% of adults with a bachelor's degree. It votes R+19.6 relative to the nation for president.
2024 election
Nov 5, 2024- Leonard Christian (R) · won64.3%
- Miguel Valencia (D)35.5%
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; the seat changed party 1 time. 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 | Leonard Christian (R) | Miguel Valencia (D) | 28.8 |
| Lines first used in 2012 | |||
| 2020 | Mike Padden (R) | John Roskelley (D) | 25.2 |
| 2016 | Mike Padden (R) | — | Unopposed |
| 2012 | Mike Padden (R) | — | Unopposed |
| Lines first used in 2002 | |||
| 2008 | Bob McCaslin (R) | Judi Owens (D) | 15.0 |
| 2004 | Bob McCaslin (R) | Tim Hattenburg (D) | 19.0 |
| Lines first used in 1992 | |||
| 2000 | Bob McCaslin (R) | James Peck (D) | 28.5 |
| 1996 | Bob McCaslin (R) | George Orr (D) | 8.7 |
| 1992 | Bob McCaslin (R) | John W. Day (D) | 20.9 |
| Lines first used in 1982 | |||
| 1988 | Bob McCaslin (R) | Ron Schmidt (D) | 25.8 |
| 1984 | Bob McCaslin (R) | McMullan (D) | 26.5 |
| Lines first used in 1972 | |||
| 1980 | Bob McCaslin (R)Flip | William S. Day (D) | 13.3 |
| 1976 | William S. Day (D) | — | Unopposed |
| 1972 | William S. Day (D) | Robert F. Goldsworthy (R) | 9.7 |
| Lines first used in 1962 | |||
| 1968 | William S. Day (D) | W. A. Whitford (R) | 20.3 |
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 4
The state's districts in other chambers that share residents with this one, and the share of District 4's area in each.
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 | 2024 | |
|---|---|---|
| President | R+17.0 | R+18.8 |
| U.S. Senate | No race | R+17.1 |
| Governor | R+23.3 | R+22.5 |
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 4.
Lower than 81% of seats.
Higher than 96% of seats.
Lower than 98% of seats.
Lower than 79% of seats.
Lower than 85% of seats.
Less dense than 58% 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 629% college gradsR+11.2Held RDistrict 20
24% college gradsR+28.0Not up in 2026District 31
30% college gradsR+7.2Held RDistrict 19
WashingtonR+15.4Not up in 2026
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