- Lead
- 6,464
- Total
- 48,620
- vs nation
- R+11.8
Colorado 15th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 6,588
- Total
- 44,152
- vs nation
- R+19.4
- Lead
- 9,423
- Total
- 32,396
- vs nation
- R+31.2
- Lead
- 8,153
- Total
- 29,047
- vs nation
- R+31.9
- Lead
- 7,311
- Total
- 27,360
- vs nation
- R+34.0
- Lead
- 10,234
- Total
- 24,629
- vs nation
- R+39.1
- Lead
- 8,150
- Total
- 20,509
- vs nation
- R+40.3
- Lead
- 5,915
- Total
- 17,505
- vs nation
- R+42.3
Key facts
- 2024 presidential margin
- R+13.3MIT Election Lab
- Population
- 89,9182024 5-year
- Population density
- 1,024 / sq mi2024 5-year · TIGER/Line
- Land area
- 87.8 sq miTIGER/Line
- Median household income
- $103,0722024 5-year
- White (non-Hispanic)
- 61.1%2024 5-year
- Black
- 6.6%2024 5-year
- Hispanic / Latino
- 19.1%2024 5-year
- Peak Democratic margin
- D+38.5 in 1896MIT Election Lab
- Peak Republican margin
- R+57.8 in 1928MIT Election Lab
- Most similar
- State House District 22, CO · twin score 93.2
presidential history
Party record book
Colorado 15th State House 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
67.8%
1,614 votes · D+38.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 51.9%
Republican
Herbert Hoover1928
78.4%
1,744 votes · R+57.8 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 78.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
20,455votes
42.1% of the vote · R+13.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 17,881 votes
Republican
Donald Trump2024
26,919votes
55.4% of the vote · R+13.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 24,469 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
+44.5pts D vs U.S.
Place D+38.5 · U.S. R+6.1 · modeled estimate
Runner-up · Woodrow Wilson, 1912 · −8.0 pts
Republican
Benjamin Harrison1892
+48.0pts R vs U.S.
Place R+46.3 · U.S. D+1.7 · a third-party candidate carried the Place · modeled estimate
Runner-up · Bob Dole, 1996 · +42.3 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 | R | 42.5%18,042 | 57.5%24,442 | 42,484 |
| 2020 | R | 40.2%17,113 | 59.8%25,492 | 42,605 |
Its Republican presidential margin was R+13.3 in 2024 and R+26.6 in 2008. About 30,700 residents lived here, with White alone at 70.3% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 38.5 points in 1896 and a Republican high of 57.8 points in 1928. Between 2020 and 2024 the district moved 1.6 points toward the Democratic candidate; the 2024 margin was 13.3 points.
A population of 89,918, a 61% non-Hispanic-white share, and a median household income of $103,072 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 22 and State House District 15.
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 →
Colorado 15th State House District. Akashic. https://akashic.app/sld-lower/08015/. Accessed May 20, 2026. License: CC BY 4.0.