- Lead
- 21,064
- Total
- 76,263
- vs nation
- R+26.1
Oregon 9th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 18,463
- Total
- 77,783
- vs nation
- R+28.2
- Lead
- 15,781
- Total
- 63,551
- vs nation
- R+26.9
- Lead
- 14,777
- Total
- 56,099
- vs nation
- R+30.2
- Lead
- 12,074
- Total
- 56,639
- vs nation
- R+28.6
- Lead
- 19,414
- Total
- 60,602
- vs nation
- R+29.6
- Lead
- 14,963
- Total
- 51,856
- vs nation
- R+29.4
- Lead
- 9,013
- Total
- 47,465
- vs nation
- R+27.5
Key facts
- 2024 presidential margin
- R+27.6MIT Election Lab
- Population
- 142,0912024 5-year
- Population density
- 57 / sq mi2024 5-year · TIGER/Line
- Land area
- 2,499 sq miTIGER/Line
- Median household income
- $86,8212024 5-year
- White (non-Hispanic)
- 73.4%2024 5-year
- Black
- 0.6%2024 5-year
- Hispanic / Latino
- 17.9%2024 5-year
- Peak Democratic margin
- D+7.7 in 1936MIT Election Lab
- Peak Republican margin
- R+69.1 in 1904MIT Election Lab
- Most similar
- State Senate District 29, OR · twin score 88.2
presidential history
Party record book
Oregon 9th State Senate 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
Lyndon B. Johnson1964
51.3%
10,675 votes · D+2.9 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 50.6%
Republican
Theodore Roosevelt1904
80.2%
2,026 votes · R+69.1 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 78.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
28,482votes
36.6% of the vote · R+23.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 26,308 votes
Republican
Donald Trump2024
47,372votes
62.1% of the vote · R+27.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 46,945 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
−16.6pts D vs U.S.
Place D+7.7 · U.S. D+24.3 · modeled estimate
Runner-up · George McGovern, 1972 · −16.7 pts
Republican
Benjamin Harrison1892
+51.3pts R vs U.S.
Place R+49.6 · U.S. D+1.7 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +49.5 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 | R | 47.9%30,587 | 52.1%33,284 | 63,871 |
| 2020 | D | 50.2%33,992 | 49.8%33,739 | 67,731 |
Covering a lightly populated stretch of Oregon, District 9 tilts reliably toward Republican candidates in statewide contests, with its 142,000 residents spread across an economy rooted in agriculture and natural resources.
Across the recorded series it reached a Democratic high of 7.7 points in 1936 and a Republican high of 69.1 points in 1904. Between 2020 and 2024 the district moved 3.9 points toward the Republican candidate; the 2024 margin was 27.6 points.
A population of 142,091, a 73% non-Hispanic-white share, and a median household income of $86,821 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 29 and State Senate District 1.
The state-senate 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 9th State Senate District. Akashic. https://akashic.app/sld-upper/41009/. Accessed May 20, 2026. License: CC BY 4.0.