- Lead
- 4,869
- Total
- 39,786
- vs nation
- D+13.7
Oregon 40th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 5,348
- Total
- 42,100
- vs nation
- D+8.2
- Lead
- 2,390
- Total
- 34,978
- vs nation
- D+4.7
- Lead
- 1,303
- Total
- 30,643
- vs nation
- D+0.4
- Lead
- 3,388
- Total
- 30,976
- vs nation
- D+3.7
- Lead
- 243
- Total
- 31,480
- vs nation
- D+1.7
- Lead
- 5
- Total
- 26,356
- vs nation
- R+0.5
- Lead
- 1,474
- Total
- 23,755
- vs nation
- R+2.3
Key facts
- 2024 presidential margin
- D+12.2MIT Election Lab
- Population
- 71,1842024 5-year
- Population density
- 3,296 / sq mi2024 5-year · TIGER/Line
- Land area
- 21.6 sq miTIGER/Line
- Median household income
- $95,0492024 5-year
- White (non-Hispanic)
- 79.2%2024 5-year
- Black
- 1.1%2024 5-year
- Hispanic / Latino
- 9.4%2024 5-year
- Peak Democratic margin
- D+39.7 in 1936MIT Election Lab
- Peak Republican margin
- R+53.3 in 1904MIT Election Lab
- Most similar
- State House District 54, OR · twin score 88.6
presidential history
Party record book
Oregon 40th 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
Franklin D. Roosevelt1936
66.7%
2,330 votes · D+39.7 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 62.4%
Republican
Theodore Roosevelt1904
68.8%
448 votes · R+53.3 · 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
22,981votes
54.6% of the vote · D+12.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 21,528 votes
Republican
Donald Trump2020
17,633votes
41.9% of the vote · D+12.7 · modeled estimate
Runner-up · Donald Trump, 2024 · 16,659 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
Franklin D. Roosevelt1936
+15.4pts D vs U.S.
Place D+39.7 · U.S. D+24.3 · modeled estimate
Runner-up · Kamala Harris, 2024 · +13.7 pts
Republican
Theodore Roosevelt1904
+33.6pts R vs U.S.
Place R+53.3 · U.S. R+19.7 · modeled estimate
Runner-up · Benjamin Harrison, 1892 · +29.2 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 |
|---|---|---|---|---|
| 2024 | D | 51.7%19,258 | 48.3%18,026 | 37,284 |
| 2020 | D | 54.0%21,842 | 46.0%18,622 | 40,464 |
With a 2024 presidential margin of D+12.2 across a population of roughly 71,000, this district sits comfortably in Oregon's Democratic column — competitive enough to track but not among the state's marquee battlegrounds.
Across the recorded series it reached a Democratic high of 39.7 points in 1936 and a Republican high of 53.3 points in 1904. The 2024 margin was 12.2 points.
A population of 71,184, a 79% non-Hispanic-white share, and a median household income of $95,049 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 54 and Legislative (House) District 40.
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 40th State House District. Akashic. https://akashic.app/sld-lower/41040/. Accessed May 20, 2026. License: CC BY 4.0.