- Lead
- 13,951
- Total
- 424,247
- vs nation
- R+1.8
Washington 3rd Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 17,685
- Total
- 423,547
- vs nation
- R+8.6
- Lead
- 24,118
- Total
- 324,582
- vs nation
- R+9.5
- Lead
- 7,864
- Total
- 303,698
- vs nation
- R+6.4
- Lead
- 8,048
- Total
- 296,756
- vs nation
- R+4.6
- Lead
- 21,712
- Total
- 275,791
- vs nation
- R+5.4
- Lead
- 16,084
- Total
- 229,147
- vs nation
- R+7.5
- Lead
- 10,317
- Total
- 197,994
- vs nation
- R+3.3
Key facts
- 2024 presidential margin
- R+3.3MIT Election Lab
- Population
- 769,9152024 5-year
- Population density
- 105 / sq mi2024 5-year · TIGER/Line
- Land area
- 7,310 sq miTIGER/Line
- Median household income
- $90,4282024 5-year
- White (non-Hispanic)
- 75.2%2024 5-year
- Black
- 1.7%2024 5-year
- Hispanic / Latino
- 11.0%2024 5-year
- Peak Democratic margin
- D+38.1 in 1964MIT Election Lab
- Peak Republican margin
- R+56.6 in 1904MIT Election Lab
- Most similar
- Congressional District 5, WA · twin score 89.8
presidential history
Party record book
Washington 3rd Congressional 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
Lyndon B. Johnson1964
68.9%
68,151 votes · D+38.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 66.0%
Republican
Theodore Roosevelt1904
73.2%
9,595 votes · R+56.6 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 67.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
197,993votes
46.7% of the vote · R+3.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 196,224 votes
Republican
Donald Trump2020
213,909votes
50.5% of the vote · R+4.2 · modeled estimate
Runner-up · Donald Trump, 2024 · 211,944 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
Lyndon B. Johnson1964
+15.5pts D vs U.S.
Place D+38.1 · U.S. D+22.6 · modeled estimate
Runner-up · George McGovern, 1972 · +14.0 pts
Republican
Theodore Roosevelt1904
+36.9pts R vs U.S.
Place R+56.6 · U.S. R+19.7 · modeled estimate
Runner-up · William H. Taft, 1908 · +27.2 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Anchored by Vancouver and stretching into rural timber country, WA-03 has swung between parties in consecutive cycles, with its 2024 presidential margin landing at R+3.3 — a seat neither side can take for granted.
Across the recorded series it reached a Democratic high of 38.1 points in 1964 and a Republican high of 56.6 points in 1904. Between 2020 and 2024 the district moved 0.9 points toward the Democratic candidate; the 2024 margin was 3.3 points.
A population of 769,915, a 75% non-Hispanic-white share, and a median household income of $90,428 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 6.
The congressional 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 3rd Congressional District. Akashic. https://akashic.app/cd/5303/. Accessed May 20, 2026. License: CC BY 4.0.