Washington 30th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Joe Biden2020
60.0%
39,601 votes · D+23.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 58.2%
Republican
Theodore Roosevelt1904
83.5%
1,812 votes · R+75.2 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 79.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
39,601votes
60.0% of the vote · D+23.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 33,485 votes
Republican
Ronald Reagan1984
28,224votes
69.1% of the vote · R+39.2 · modeled estimate
Runner-up · George W. Bush, 2004 · 25,541 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Kamala Harris2024
+21.2pts D vs U.S.
Place D+19.8 · U.S. R+1.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +18.7 pts
Republican
Theodore Roosevelt1904
+55.6pts R vs U.S.
Place R+75.2 · U.S. R+19.7 · modeled estimate
Runner-up · Benjamin Harrison, 1892 · +48.2 pts
current representation
Current officeholders
DJamila TaylorState House · 30
DKristine ReevesState House · 30
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 1 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2018
D
81.0%51,124
19.0%11,978
63,102
Washington's 30th sits in the southern King–Pierce corridor, where dense suburban growth and a highly educated workforce have steadily widened the Democratic presidential margin over the past decade.
Across the recorded series it reached a Democratic high of 23.0 points in 2020 and a Republican high of 75.2 points in 1904. Between 2020 and 2024 the district moved 3.2 points toward the Republican candidate; the 2024 margin was 19.8 points.
A population of 156,970, a 42% non-Hispanic-white share, and a median household income of $90,803 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (House) District 33 and Legislative (House) District 11.
Akashic
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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 → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Washington 30th State House District. Akashic. https://akashic.app/sld-lower/53030/. Accessed May 20, 2026. License: CC BY 4.0.
How did Washington 30th State House District vote in 2024?
In 2024, Washington 30th State House District voted Democratic by 19.8 points (D+19.8), carried by the Democratic candidate. Out of 57,556 votes cast, 33,485 went Democratic and 22,116 went Republican.
When did Washington 30th State House District last vote Republican?
The most recent presidential election in which Washington 30th State House District voted Republican was 2004.
How many people live in Washington 30th State House District?
Washington 30th State House District has a population of 156,970 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington 30th State House District?
Median household income in Washington 30th State House District is $90,803 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of Washington 30th State House District?
Akashic tracks 38 presidential elections in Washington 30th State House District from 1876 to 2024. Of those, 6 went Democratic and 26 went Republican.