- Lead
- 15,699
- Total
- 34,142
- vs nation
- D+47.5
Oregon 34th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 17,028
- Total
- 36,323
- vs nation
- D+42.4
- Lead
- 10,895
- Total
- 29,607
- vs nation
- D+34.7
- Lead
- 7,755
- Total
- 26,034
- vs nation
- D+25.9
- Lead
- 8,939
- Total
- 26,086
- vs nation
- D+27.0
- Lead
- 4,817
- Total
- 24,991
- vs nation
- D+21.7
- Lead
- 3,047
- Total
- 20,003
- vs nation
- D+14.7
- Lead
- 3,204
- Total
- 17,261
- vs nation
- D+10.0
Key facts
- 2024 presidential margin
- D+46.0MIT Election Lab
- Population
- 70,0602024 5-year
- Population density
- 5,151 / sq mi2024 5-year · TIGER/Line
- Land area
- 13.6 sq miTIGER/Line
- Median household income
- $148,3902024 5-year
- White (non-Hispanic)
- 52.0%2024 5-year
- Black
- 2.0%2024 5-year
- Hispanic / Latino
- 8.3%2024 5-year
- Peak Democratic margin
- D+46.9 in 2020MIT Election Lab
- Peak Republican margin
- R+52.0 in 1904MIT Election Lab
- Most similar
- Legislative (House) District 48, WA · twin score 97.2
presidential history
Party record book
Oregon 34th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Joe Biden2020
71.9%
26,130 votes · D+46.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 70.9%
Republican
Theodore Roosevelt1904
70.2%
231 votes · R+52.0 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 59.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
26,130votes
71.9% of the vote · D+46.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 24,198 votes
Republican
George W. Bush2004
9,949votes
39.8% of the vote · D+19.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 9,102 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
+47.5pts D vs U.S.
Place D+46.0 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +42.4 pts
Republican
Benjamin Harrison1892
+36.9pts R vs U.S.
Place R+35.3 · U.S. D+1.7 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +32.3 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 |
|---|---|---|---|---|
| 2024 | D | 67.4%21,748 | 32.6%10,498 | 32,246 |
| 2020 | D | 67.4%24,154 | 32.6%11,683 | 35,837 |
With a 2024 presidential margin of D+46, this Portland-area district ranks among the most heavily Democratic state house seats in Oregon, making competitive general elections rare and primary contests the decisive battleground.
Across the recorded series it reached a Democratic high of 46.9 points in 2020 and a Republican high of 52.0 points in 1904. Between 2020 and 2024 the district moved 0.9 points toward the Republican candidate; the 2024 margin was 46.0 points.
A population of 70,060, a 52% non-Hispanic-white share, and a median household income of $148,390 describe the district. The district's voting pattern over the last decade is most similar to that of Legislative (House) District 48 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 →
Oregon 34th State House District. Akashic. https://akashic.app/sld-lower/41034/. Accessed May 20, 2026. License: CC BY 4.0.