congressional districtColorado 4th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004R+35.6
2008R+20.7
2012R+27.2
2016R+27.4
2020R+18.6
2024R+18.2
net swing · 2004→2024D+17.3R+35.6 → R+18.2
vs. U.S. · 2024R+16.8R+18.2 vs R+1.5
presidential returns
2024 turnout 82.7% of 558,695 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
182,985
267,241
11,568
461,794
558,695
82.7%
2020
174,509
256,525
9,414
440,448
522,260†
84.3%
2016
117,242
217,316
30,153
364,711
476,730†
76.5%
2012
115,807
204,950
6,745
327,502
434,989†
75.3%
2008
116,450
178,639
5,746
300,835
411,046†
73.2%
2004
81,941
173,864
2,633
258,438
387,104†
66.8%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
District by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupCO-4ColoradoUnited States
German23.2%17.9%12.5%
English15.5%12.6%9.5%
Irish13.6%11.2%9.4%
Italian5.7%4.9%4.8%
American4.6%3.5%5.3%
Scottish2.9%2.5%1.3%
Polish2.2%2.1%2.2%
French2.2%2.0%1.6%
Mexican10.0%15.8%11.3%
Spanish0.5%1.2%—
Spaniard0.5%1.0%—
Puerto Rican0.4%0.7%1.8%
Salvadoran0.2%0.3%0.7%
Colombian0.2%0.3%0.4%
Asian Indian0.8%0.6%1.4%
Chinese0.5%0.6%1.3%
Vietnamese0.4%0.4%0.6%
Filipino0.4%0.3%0.9%
Korean0.4%0.3%0.4%
Japanese0.2%—0.2%
African American†1.3%2.8%9.9%
Aztec0.5%0.1%—
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
CO-4
Colorado
United States
Median age
39.4
37.9
39.1
Age 18–24
8.7%
9.2%
9.2%
Age 65 and older
13.7%
15.5%
17.2%
Household economy
Measure
CO-4
Colorado
United States
Median household income
$115,239
$95,470
$84,427
Poverty rate
6.8%
9.5%
12.5%
Bachelor's degree or higher (25+)
42.0%
45.5%
35.6%
Languages at home
Measure
CO-4
Colorado
United States
Speaks a non-English language at home
19.1%
16.2%
22.3%
Spanish
13.0%
11.1%
13.6%
Other Indo-European
1.2%
1.0%
2.0%
Religious landscape
Measure
CO-4
Colorado
United States
Catholic
—
15.1%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
64.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Colorado 4th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−35.6%
2008
−20.7%
2012
−27.2%
2016
−27.4%
2020
−18.6%
2024
−18.2%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 25 House races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
4
R
42.0%188,249
53.6%240,213
447,807
2022
4
R
36.6%129,619
60.9%216,024
354,513
2020
4
R
36.6%173,945
60.1%285,606
475,107
2018
4
R
39.4%145,544
60.6%224,038
369,582
2016
4
R
31.7%123,642
63.5%248,230
390,633
2014
4
R
29.2%83,727
64.7%185,292
286,507
2012
4
R
36.7%125,800
58.4%200,006
342,336
2010
4
R
41.4%109,249
52.5%138,634
264,181
2008
4
D
56.2%187,347
43.8%146,028
333,375
2006
4
R
43.1%103,748
45.6%109,732
240,613
2004
4
R
44.8%136,812
51.0%155,958
305,509
2002
4
R
41.7%87,499
54.9%115,359
209,955
2000
4
R
0.0%0
79.5%209,078
263,006
1998
4
R
40.7%89,973
59.3%131,318
221,291
1996
4
R
38.0%92,837
56.1%137,012
244,067
1994
4
R
27.7%52,202
72.3%136,251
188,453
1992
4
R
42.2%101,957
57.8%139,884
241,841
1990
4
R
45.9%75,901
54.1%89,285
165,186
1988
4
R
26.9%57,552
73.1%156,202
213,754
1986
4
R
30.2%50,672
69.8%117,089
167,761
1984
4
R
27.4%56,462
71.1%146,469
205,930
1982
4
R
30.2%45,750
69.8%105,550
151,300
1980
4
R
29.5%76,849
68.4%178,221
260,491
1978
4
R
38.8%65,421
61.2%103,121
168,542
1976
4
R
34.8%76,995
54.0%119,458
221,018
Covering the entire eastern third of Colorado plus rural southern counties, CO-4 is one of the largest districts by area in the contiguous U.S., where ranching economies and sparse population density have produced consistent double-digit Republican margins in recent election cycles.
Across the recorded series it reached a Republican high of 35.6 points in 2004. The 2024 margin was 18.2 points.
A population of 721,535, a 76% non-Hispanic-white share, and a median household income of $115,239 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 5.
Akashic
Political twins — districts
The congressional 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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
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Colorado 4th Congressional District. Akashic. https://akashic.app/cd/0804/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Colorado 4th Congressional District vote in 2024?
In 2024, Colorado 4th Congressional District voted Republican by 18.2 points (R+18.2), carried by the Republican candidate. Out of 461,794 votes cast, 182,985 went Democratic and 267,241 went Republican.
How many people live in Colorado 4th Congressional District?
Colorado 4th Congressional District has a population of 721,535 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Colorado 4th Congressional District?
Median household income in Colorado 4th Congressional District is $115,239 — above the national median of $80,734. The Colorado state median is $95,470.
What is the political history of Colorado 4th Congressional District?
Akashic tracks 6 presidential elections in Colorado 4th Congressional District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
