HarrisDemocratic40.1%45,436TrumpRepublican57.3%64,830OtherAll other candidates2.6%2,946
R+17.1- Lead
- 19,394
- Total
- 113,212
- vs nation
- R+15.7
modeled Census-place estimatemodeled estimate
Akashicstate senate district
Colorado 4th State Senate District
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic39.5%45,184TrumpRepublican57.9%66,228OtherAll other candidates2.5%2,897
R+18.4- Lead
- 21,044
- Total
- 114,309
- vs nation
- R+22.9
modeled Census-place estimatemodeled estimate
ClintonDemocratic32.9%32,184TrumpRepublican59.3%58,024OtherAll other candidates7.8%7,633
R+26.4- Lead
- 25,840
- Total
- 97,841
- vs nation
- R+28.5
modeled Census-place estimatemodeled estimate
ObamaDemocratic38.3%34,795RomneyRepublican59.3%53,906OtherAll other candidates2.4%2,211
R+21.0- Lead
- 19,111
- Total
- 90,912
- vs nation
- R+24.9
modeled Census-place estimatemodeled estimate
ObamaDemocratic40.7%35,327McCainRepublican57.5%49,964OtherAll other candidates1.8%1,540
R+16.9- Lead
- 14,637
- Total
- 86,831
- vs nation
- R+24.1
modeled Census-place estimatemodeled estimate
KerryDemocratic35.8%28,241BushRepublican62.9%49,620OtherAll other candidates1.4%1,078
R+27.1- Lead
- 21,379
- Total
- 78,939
- vs nation
- R+24.6
modeled Census-place estimatemodeled estimate
GoreDemocratic33.4%22,066BushRepublican60.5%40,027OtherAll other candidates6.1%4,068
R+27.1- Lead
- 17,961
- Total
- 66,161
- vs nation
- R+27.7
modeled Census-place estimatemodeled estimate
ClintonDemocratic36.2%19,855DoleRepublican52.9%29,074OtherAll other candidates10.9%5,986
R+16.8- Lead
- 9,219
- Total
- 54,915
- vs nation
- R+25.3
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+17.1MIT Election Lab
- Population
- 172,4992024 5-year
- Population density
- 23 / sq mi2024 5-year · TIGER/Line
- Land area
- 7,390 sq miTIGER/Line
- Median household income
- $94,7572024 5-year
- White (non-Hispanic)
- 82.4%2024 5-year
- Black
- 1.4%2024 5-year
- Hispanic / Latino
- 9.5%2024 5-year
- Peak Democratic margin
- D+82.3 in 1896MIT Election Lab
- Peak Republican margin
- R+40.7 in 1984MIT Election Lab
- Most similar
- State Senate District 46, SC · twin score 83.5
presidential history
Party record book
Colorado 4th 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
90.1%
16,124 votes · D+82.3 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · 63.5%
Republican
Ronald Reagan1984
69.7%
29,392 votes · R+40.7 · modeled estimate
Runner-up · Richard Nixon, 1972 · 68.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
45,436votes
40.1% of the vote · R+17.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 45,184 votes
Republican
Donald Trump2020
66,228votes
57.9% of the vote · R+18.4 · modeled estimate
Runner-up · Donald Trump, 2024 · 64,830 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
+88.4pts D vs U.S.
Place D+82.3 · U.S. R+6.1 · modeled estimate
Runner-up · William J. Bryan, 1900 · +35.3 pts
Republican
Benjamin Harrison1892
+38.3pts R vs U.S.
Place R+36.6 · U.S. D+1.7 · a third-party candidate carried the Place · modeled estimate
Runner-up · Donald Trump, 2016 · +28.5 pts
current representation
Current officeholders
RMark BaisleyState Senate · 4
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
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.
Anchored in central Denver, this district delivers some of Colorado's most consistent Democratic supermajorities, reflecting a dense urban core where presidential margins have exceeded 50 points across multiple cycles.
Across the recorded series it reached a Democratic high of 82.3 points in 1896 and a Republican high of 40.7 points in 1984. Between 2020 and 2024 the district moved 1.3 points toward the Democratic candidate; the 2024 margin was 17.1 points.
A population of 172,499, a 82% non-Hispanic-white share, and a median household income of $94,757 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 46 and State Senate District 3.
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
State Senate District 46
South Carolina
83.5twin score
2008–2020 trajectory12-yr trend≠ median age
State Senate District 3
Kansas
81.6twin score
% unaffiliated12-yr trend2008–2012 trajectory≠ median age
State Senate District 43
South Carolina
80.9twin score
2008–2012 trajectory12-yr trendcollege share≠ % unaffiliated
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Colorado 4th State Senate District. Akashic. https://akashic.app/sld-upper/08004/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Places within Colorado 4th State Senate District
Frequently asked questions
How did Colorado 4th State Senate District vote in 2024?
In 2024, Colorado 4th State Senate District voted Republican by 17.1 points (R+17.1), carried by the Republican candidate. Out of 113,212 votes cast, 45,436 went Democratic and 64,830 went Republican.
When did Colorado 4th State Senate District last vote Democratic?
The most recent presidential election in which Colorado 4th State Senate District voted Democratic was 1964.
How many people live in Colorado 4th State Senate District?
Colorado 4th State Senate District has a population of 172,499 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Colorado 4th State Senate District?
Median household income in Colorado 4th State Senate District is $94,757 — above the national median of $80,734. The Colorado state median is $95,470.
What is the political history of Colorado 4th State Senate District?
Akashic tracks 38 presidential elections in Colorado 4th State Senate District from 1876 to 2024. Of those, 10 went Democratic and 26 went Republican.