- Lead
- 36,953
- Total
- 43,862
- vs nation
- D+85.7
Oregon 42nd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 41,737
- Total
- 48,727
- vs nation
- D+81.2
- Lead
- 32,417
- Total
- 42,615
- vs nation
- D+77.3
- Lead
- 31,534
- Total
- 38,172
- vs nation
- D+78.8
- Lead
- 32,133
- Total
- 38,468
- vs nation
- D+76.3
- Lead
- 28,336
- Total
- 36,728
- vs nation
- D+79.6
- Lead
- 20,299
- Total
- 29,001
- vs nation
- D+69.5
- Lead
- 15,978
- Total
- 26,242
- vs nation
- D+57.8
Key facts
- 2024 presidential margin
- D+84.2MIT Election Lab
- Population
- 70,0102024 5-year
- Population density
- 9,092 / sq mi2024 5-year · TIGER/Line
- Land area
- 7.7 sq miTIGER/Line
- Median household income
- $89,3632024 5-year
- White (non-Hispanic)
- 76.3%2024 5-year
- Black
- 2.1%2024 5-year
- Hispanic / Latino
- 8.0%2024 5-year
- Peak Democratic margin
- D+85.7 in 2020MIT Election Lab
- Most similar
- State House District 43, OR · twin score 99.3
presidential history
Party record book
Oregon 42nd 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
Samuel J. Tilden1876
91.9%
203 votes · D+83.7 · modeled estimate
Runner-up · Joe Biden, 2020 · 91.5%
Republican
Theodore Roosevelt1904
31.5%
296 votes · D+3.7 · modeled estimate
Runner-up · William H. Taft, 1908 · 31.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
44,563votes
91.5% of the vote · D+85.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 39,270 votes
Republican
Dwight D. Eisenhower1952
4,860votes
26.6% of the vote · D+46.2 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 4,818 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
+85.7pts D vs U.S.
Place D+84.2 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +81.2 pts
Republican
Benjamin Harrison1892
−5.3pts R vs U.S.
Place D+6.9 · U.S. D+1.7 · a third-party candidate carried the Place · modeled estimate
Runner-up · William H. Taft, 1912 · −18.6 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.
With a 2024 presidential margin of D+84.2, this Portland-area district ranks among the most reliably left-aligned constituencies in the state, leaving legislative races with little competitive uncertainty.
Across the recorded series it reached a Democratic high of 85.7 points in 2020. Between 2020 and 2024 the district moved 1.4 points toward the Republican candidate; the 2024 margin was 84.2 points.
A population of 70,010, a 76% non-Hispanic-white share, and a median household income of $89,363 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 43 and State House District 44.
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 42nd State House District. Akashic. https://akashic.app/sld-lower/41042/. Accessed May 20, 2026. License: CC BY 4.0.