- Lead
- 67,494
- Total
- 82,963
- vs nation
- D+82.8
Washington 43rd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 72,090
- Total
- 86,661
- vs nation
- D+78.7
- Lead
- 60,867
- Total
- 78,215
- vs nation
- D+76.9
- Lead
- 55,645
- Total
- 70,910
- vs nation
- D+74.6
- Lead
- 54,325
- Total
- 67,680
- vs nation
- D+73.0
- Lead
- 46,974
- Total
- 62,228
- vs nation
- D+77.9
- Lead
- 37,797
- Total
- 53,803
- vs nation
- D+69.7
- Lead
- 32,929
- Total
- 50,394
- vs nation
- D+57.9
Key facts
- 2024 presidential margin
- D+81.4MIT Election Lab
- Population
- 156,8492024 5-year
- Population density
- 15,530 / sq mi2024 5-year · TIGER/Line
- Land area
- 10.1 sq miTIGER/Line
- Median household income
- $126,8472024 5-year
- White (non-Hispanic)
- 60.2%2024 5-year
- Black
- 4.1%2024 5-year
- Hispanic / Latino
- 7.5%2024 5-year
- Peak Democratic margin
- D+83.2 in 2020MIT Election Lab
- Peak Republican margin
- R+13.0 in 1924MIT Election Lab
- Most similar
- Legislative (Senate) District 46, WA · twin score 99.1
presidential history
Party record book
Washington 43rd State Senate 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
90.3%
78,296 votes · D+83.2 · modeled estimate
Runner-up · Barack Obama, 2008 · 89.3%
Republican
Herbert Hoover1928
31.9%
2,171 votes · D+32.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 31.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
78,296votes
90.3% of the vote · D+83.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 73,361 votes
Republican
Ronald Reagan1984
8,047votes
22.1% of the vote · D+54.3 · modeled estimate
Runner-up · George W. Bush, 2004 · 7,138 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
+82.8pts D vs U.S.
Place D+81.4 · U.S. R+1.5 · modeled estimate
Runner-up · William J. Bryan, 1896 · +82.5 pts
Republican
Calvin Coolidge1924
−12.1pts R vs U.S.
Place R+13.0 · U.S. R+25.2 · a third-party candidate carried the Place · modeled estimate
Runner-up · William H. Taft, 1912 · −16.2 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 |
|---|---|---|---|---|
| 2020 | D | 74.4%59,655 | 25.6%20,475 | 80,130 |
| 2018 | D | 81.0%51,084 | 19.0%11,969 | 63,053 |
Washington 43rd State Senate District sits in the Pacific Northwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 83.2 points in 2020 and a Republican high of 13.0 points in 1924. Between 2020 and 2024 the district moved 1.8 points toward the Republican candidate; the 2024 margin was 81.4 points.
A population of 156,849, a 60% non-Hispanic-white share, and a median household income of $126,847 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (Senate) District 46 and Legislative (Senate) District 36.
The state-senate 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 43rd State Senate District. Akashic. https://akashic.app/sld-upper/53043/. Accessed May 20, 2026. License: CC BY 4.0.