Akashic
1892–2024
Akashic
Washington 20th State Senate District
presidential margin
2008R+12.62012R+19.62016R+29.22020R+27.82024R+27.0
full record · 2008 → 2024
R+27.0
2024
median income$90,896U.S. $80,734 · WA $98,141
median age40.8U.S. 39.1 · WA 38.5
poverty rate10.0%U.S. 12.5% · WA 9.9%
bachelor’s+ (25+)28.8%U.S. 35.6% · WA 39.3%
non-english13.6%U.S. 22.3% · WA 21.5%
race · ethnicity · ancestry
German18.5%
English15.0%
Irish11.7%
Mexican6.6%
Puerto Rican0.3%
Spaniard0.3%
Chinese0.3%
Vietnamese0.2%
Filipino0.2%
religion

Religious adherence is published only at the county level (U.S. Religion Census). See Cowlitz County.

American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.

Washington 20th State Senate District

Akashic
Washington 20th State Senate DistrictTrumpR+27.0
2024
2024 presidential margin for Washington 20th State Senate DistrictThe boundary of Washington 20th State Senate District, filled by its 2024 presidential margin (R+27.0), over faint outlines of the counties it is drawn from.Washington 20th State Senate District · R+27.0
How it voted
Share of the 2024 vote
Donald Trump ✓Republican61.9%59,641
Kamala HarrisDemocratic34.9%33,650
Robert F. Kennedy Jr.We The People3.2%3,057
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 4 counties it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (4 counties) — table
2024 presidential result by county for Washington 20th State Senate District — winner and D-vs-R margin.
CountyWinnerMargin
Clark County, WADemocraticD+6.9
Cowlitz County, WARepublicanR+19.8
Lewis County, WARepublicanR+32.8
Thurston County, WADemocraticD+20.3
5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
R
34.9%Harris33,650
61.9%Trump59,641
3.2%Kennedy3,057
−27.0%
96,348
R
34.7%Biden32,035
62.4%Trump57,705
2.9%Jorgensen2,687
−27.8%
92,427
R
31.9%Clinton21,622
61.1%Trump41,448
7.1%Johnson4,810
−29.2%
67,880
R
40.2%Obama25,469
59.8%Romney37,909
0.0%
−19.6%
63,378
R
42.5%Obama27,568
55.1%McCain35,730
2.3%Nader1,501
−12.6%
64,799
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: −27.0% in 2024.−27.0%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008−12.6%
2012−19.6%
2016−29.2%
2020−27.8%
2024−27.0%
DemocraticRepublican
current representation
Current officeholders
RJohn BraunState Senate · 20

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

Centered in the Columbia Basin, this district delivered a 27-point margin in 2024, reflecting the region's rural, agricultural character and voting patterns consistent with other Eastern Washington constituencies.

Across the recorded series it reached a Republican high of 29.2 points in 2016. Between 2020 and 2024 the district moved 0.8 points toward the Democratic candidate; the 2024 margin was 27.0 points.

A population of 157,077, a 85% non-Hispanic-white share, and a median household income of $90,896 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (Senate) District 4 and State Senate District 14.

Political twins — state-senate districts

The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Legislative (Senate) District 4
Washington
91.1twin score
2008–2016 trajectory% Catholic
State Senate District 14
Ohio
87.6twin score
2012–2020 trajectory% Catholic
State Senate District 45
Indiana
86.0twin score
2016–2020 trajectory% Catholic% unaffiliated

Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Washington 20th State Senate District. Akashic. https://akashic.app/sld-upper/53020/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Washington at the ballot boxAll elections →
Presidentcounty detail2024US Senatestatewide2024Governorstate + county2024US Houseall districts2024

Places within Washington 20th State Senate District

counties it covers3
Clark CountyCowlitz CountyLewis County

Frequently asked questions

How did Washington 20th State Senate District vote in 2024?
In 2024, Washington 20th State Senate District voted Republican by 27.0 points (R+27.0), carried by the Republican candidate. Out of 96,348 votes cast, 33,650 went Democratic and 59,641 went Republican.
How many people live in Washington 20th State Senate District?
Washington 20th State Senate District has a population of 157,077 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington 20th State Senate District?
Median household income in Washington 20th State Senate District is $90,896 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Washington 20th State Senate District?
Akashic tracks 5 presidential elections in Washington 20th State Senate District from 2008 to 2024. Of those, 0 went Democratic and 5 went Republican.