- Lead
- 1,763
- Total
- 87,969
- vs nation
- D+3.5
Washington 12th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,390
- Total
- 89,103
- vs nation
- R+1.8
- Lead
- 2,268
- Total
- 71,760
- vs nation
- R+5.3
- Lead
- 5,022
- Total
- 67,814
- vs nation
- R+11.3
- Lead
- 3,068
- Total
- 65,929
- vs nation
- R+11.9
- Lead
- 11,279
- Total
- 62,441
- vs nation
- R+15.6
- Lead
- 11,852
- Total
- 55,766
- vs nation
- R+21.8
- Lead
- 5,734
- Total
- 50,568
- vs nation
- R+19.9
Key facts
- 2024 presidential margin
- D+2.0MIT Election Lab
- Population
- 159,0422024 5-year
- Population density
- 38 / sq mi2024 5-year · TIGER/Line
- Land area
- 4,155 sq miTIGER/Line
- Median household income
- $106,7242024 5-year
- White (non-Hispanic)
- 70.8%2024 5-year
- Black
- 0.9%2024 5-year
- Hispanic / Latino
- 19.0%2024 5-year
- Peak Democratic margin
- D+18.0 in 1936MIT Election Lab
- Peak Republican margin
- R+60.2 in 1904MIT Election Lab
- Most similar
- State House District 19, CO · twin score 78.2
presidential history
Party record book
Washington 12th 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
Franklin D. Roosevelt1936
57.3%
10,871 votes · D+18.0 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 52.6%
Republican
Herbert Hoover1928
77.9%
11,424 votes · R+56.8 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 76.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
44,227votes
49.6% of the vote · D+2.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 43,190 votes
Republican
Donald Trump2020
41,837votes
47.0% of the vote · D+2.7 · modeled estimate
Runner-up · Donald Trump, 2024 · 41,427 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
+3.5pts D vs U.S.
Place D+2.0 · U.S. R+1.5 · modeled estimate
Runner-up · William J. Bryan, 1900 · −1.6 pts
Republican
Theodore Roosevelt1904
+40.5pts R vs U.S.
Place R+60.2 · U.S. R+19.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +39.4 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 | 61.2%36,924 | 38.8%23,386 | 60,310 |
Washington 12th State House District sits in the Pacific Northwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 18.0 points in 1936 and a Republican high of 60.2 points in 1904. Between 2020 and 2024 the district moved 0.7 points toward the Republican candidate; the 2024 margin was 2.0 points.
A population of 159,042, a 71% non-Hispanic-white share, and a median household income of $106,724 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 19 and Legislative (House) District 42.
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 12th State House District. Akashic. https://akashic.app/sld-lower/53012/. Accessed May 20, 2026. License: CC BY 4.0.