- Lead
- 429
- Total
- 56,755
- vs nation
- D+2.2
Colorado 51st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,251
- Total
- 56,069
- vs nation
- R+8.5
- Lead
- 8,121
- Total
- 48,978
- vs nation
- R+18.7
- Lead
- 7,805
- Total
- 45,132
- vs nation
- R+21.1
- Lead
- 5,619
- Total
- 41,274
- vs nation
- R+20.9
- Lead
- 10,546
- Total
- 37,505
- vs nation
- R+25.7
- Lead
- 10,632
- Total
- 30,790
- vs nation
- R+35.0
- Lead
- 6,411
- Total
- 24,979
- vs nation
- R+34.2
Key facts
- 2024 presidential margin
- D+0.8MIT Election Lab
- Population
- 87,6782024 5-year
- Population density
- 1,303 / sq mi2024 5-year · TIGER/Line
- Land area
- 67.3 sq miTIGER/Line
- Median household income
- $85,5922024 5-year
- White (non-Hispanic)
- 79.8%2024 5-year
- Black
- 0.8%2024 5-year
- Hispanic / Latino
- 12.9%2024 5-year
- Peak Democratic margin
- D+36.4 in 1896MIT Election Lab
- Peak Republican margin
- R+68.5 in 1924MIT Election Lab
- Most similar
- State House District 28, CO · twin score 86.6
presidential history
Party record book
Colorado 51st 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
65.9%
565 votes · D+36.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 49.0%
Republican
Calvin Coolidge1924
81.8%
2,074 votes · R+68.5 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 81.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
27,784votes
49.0% of the vote · D+0.8 · modeled estimate
Runner-up · Joe Biden, 2020 · 26,079 votes
Republican
Donald Trump2020
28,330votes
50.5% of the vote · R+4.0 · modeled estimate
Runner-up · Donald Trump, 2024 · 27,355 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
+42.5pts D vs U.S.
Place D+36.4 · U.S. R+6.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · +2.2 pts
Republican
Thomas E. Dewey1944
+59.1pts R vs U.S.
Place R+51.6 · U.S. D+7.5 · modeled estimate
Runner-up · Wendell Willkie, 1940 · +54.4 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 | 59.8%30,002 | 40.2%20,200 | 50,202 |
| 2020 | D | 56.1%28,131 | 43.9%22,027 | 50,158 |
With a 29-point presidential lean, this Denver-area district sits well outside competitive territory, making it a reliable anchor for Democratic legislative math in the Colorado House.
Across the recorded series it reached a Democratic high of 36.4 points in 1896 and a Republican high of 68.5 points in 1924. Between 2020 and 2024 the district moved 4.8 points toward the Democratic candidate; the 2024 margin was 0.8 points.
A population of 87,678, a 80% non-Hispanic-white share, and a median household income of $85,592 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 28 and State House District 38.
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 51st State House District. Akashic. https://akashic.app/sld-lower/08051/. Accessed May 20, 2026. License: CC BY 4.0.