- Lead
- 15,523
- Total
- 106,035
- vs nation
- R+13.2
Colorado 9th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 19,325
- Total
- 100,859
- vs nation
- R+23.6
- Lead
- 25,919
- Total
- 82,477
- vs nation
- R+33.5
- Lead
- 22,647
- Total
- 74,844
- vs nation
- R+34.1
- Lead
- 20,343
- Total
- 70,466
- vs nation
- R+36.1
- Lead
- 27,749
- Total
- 63,395
- vs nation
- R+41.3
- Lead
- 22,076
- Total
- 52,574
- vs nation
- R+42.5
- Lead
- 16,142
- Total
- 44,877
- vs nation
- R+44.5
Key facts
- 2024 presidential margin
- R+14.6MIT Election Lab
- Population
- 164,6142024 5-year
- Population density
- 838 / sq mi2024 5-year · TIGER/Line
- Land area
- 197 sq miTIGER/Line
- Median household income
- $126,3832024 5-year
- White (non-Hispanic)
- 75.9%2024 5-year
- Black
- 2.7%2024 5-year
- Hispanic / Latino
- 10.3%2024 5-year
- Peak Democratic margin
- D+34.9 in 1896MIT Election Lab
- Peak Republican margin
- R+60.0 in 1928MIT Election Lab
- Most similar
- State Senate District 10, CO · twin score 93.0
presidential history
Party record book
Colorado 9th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1880) · 37 presidential cycles · 37 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
William J. Bryan1896
65.5%
3,930 votes · D+34.9 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 50.9%
Republican
Herbert Hoover1928
79.3%
4,562 votes · R+60.0 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 78.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
43,911votes
41.4% of the vote · R+14.6 · modeled estimate
Runner-up · Joe Biden, 2020 · 39,189 votes
Republican
Donald Trump2024
59,434votes
56.1% of the vote · R+14.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 58,514 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
William J. Bryan1896
+41.0pts D vs U.S.
Place D+34.9 · U.S. R+6.1 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · −6.9 pts
Republican
Benjamin Harrison1892
+52.6pts R vs U.S.
Place R+51.0 · U.S. D+1.7 · modeled estimate
Runner-up · Bob Dole, 1996 · +44.5 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 | 42.5%33,030 | 57.5%44,746 | 77,776 |
| 2020 | R | 40.2%31,328 | 59.8%46,668 | 77,996 |
Colorado 9th State Senate District sits in the Rocky Mountain West. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 34.9 points in 1896 and a Republican high of 60.0 points in 1928. Between 2020 and 2024 the district moved 4.5 points toward the Democratic candidate; the 2024 margin was 14.6 points.
A population of 164,614, a 76% non-Hispanic-white share, and a median household income of $126,383 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 10 and State Senate District 34.
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 →
Colorado 9th State Senate District. Akashic. https://akashic.app/sld-upper/08009/. Accessed May 20, 2026. License: CC BY 4.0.