- Lead
- 38,044
- Total
- 85,676
- vs nation
- D+45.9
Washington 1st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 40,356
- Total
- 90,936
- vs nation
- D+39.9
- Lead
- 28,753
- Total
- 75,833
- vs nation
- D+35.8
- Lead
- 23,495
- Total
- 71,490
- vs nation
- D+29.0
- Lead
- 23,712
- Total
- 68,710
- vs nation
- D+27.2
- Lead
- 15,289
- Total
- 64,973
- vs nation
- D+26.0
- Lead
- 11,381
- Total
- 57,078
- vs nation
- D+19.4
- Lead
- 10,825
- Total
- 52,641
- vs nation
- D+12.0
Key facts
- 2024 presidential margin
- D+44.4MIT Election Lab
- Population
- 157,2012024 5-year
- Population density
- 3,047 / sq mi2024 5-year · TIGER/Line
- Land area
- 51.6 sq miTIGER/Line
- Median household income
- $149,3292024 5-year
- White (non-Hispanic)
- 64.2%2024 5-year
- Black
- 2.3%2024 5-year
- Hispanic / Latino
- 8.5%2024 5-year
- Peak Democratic margin
- D+44.4 in 2024MIT Election Lab
- Peak Republican margin
- R+50.3 in 1904MIT Election Lab
- Most similar
- Legislative (House) District 45, WA · twin score 98.0
presidential history
Party record book
Washington 1st 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
70.6%
64,159 votes · D+44.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 70.2%
Republican
Theodore Roosevelt1904
68.2%
1,497 votes · R+50.3 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 67.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
64,159votes
70.6% of the vote · D+44.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 60,114 votes
Republican
George W. Bush2004
24,331votes
37.4% of the vote · D+23.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 23,803 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
+45.9pts D vs U.S.
Place D+44.4 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +39.9 pts
Republican
Theodore Roosevelt1904
+30.7pts R vs U.S.
Place R+50.3 · U.S. R+19.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +19.9 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2018 | D | 79.1%45,190 | 20.9%11,974 | 57,164 |
Washington 1st State House District sits in the Pacific Northwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 44.4 points in 2024 and a Republican high of 50.3 points in 1904. The 2024 margin was 44.4 points.
A population of 157,201, a 64% non-Hispanic-white share, and a median household income of $149,329 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (House) District 45 and Legislative (House) District 41.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Washington 1st State House District. Akashic. https://akashic.app/sld-lower/53001/. Accessed May 20, 2026. License: CC BY 4.0.