State Senate District 4 State Senate District (CO) — Elections 1876–2024

Colorado 4th State Senate District, Colorado: Tossup district. In 2024, voted D+1%. Democratic peak: D+83 in 1896.

Key facts

2024 presidential margin: D+1MIT Election Lab
Political archetype: TossupAkashic typology
Population: 677,2592024 5-year
Median household income: $120,3022024 5-year
White (non-Hispanic): 80.6%2024 5-year
Black: 1.4%2024 5-year
Hispanic / Latino: 12.9%2024 5-year
Peak Democratic margin: D+83 in 1896MIT Election Lab
Peak Republican margin: R+41 in 1972MIT Election Lab

2024 results by constituent county

8 counties · 3 D · 5 R

R+60

D+60

One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.

38 presidential elections

Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year	Won	Margin	Democratic	Republican	Total
2024	D	+1.3%	210,541	204,799	426,769
2020	D	+1.0%	209,400	204,998	425,626
2016	R	−9.3%	147,074	180,422	358,721
2012	R	−10.9%	144,012	180,005	331,266
2008	R	−5.1%	144,621	160,493	310,127
2004	R	−18.4%	109,098	159,200	271,890
2000	R	−18.9%	83,573	125,474	221,337
1996	R	−12.7%	69,235	91,695	177,340
1992	R	−5.0%	59,122	67,812	174,310
1988	R	−18.6%	57,477	84,275	144,452
1984	R	−40.3%	37,383	89,048	128,164
1980	R	−34.2%	30,195	69,697	115,593
1976	R	−21.2%	37,961	59,144	100,129
1972	R	−41.1%	22,629	55,664	80,415
1968	R	−19.4%	23,310	35,951	65,101
1964	D	+15.3%	33,673	24,688	58,551
1960	R	−15.6%	20,640	28,295	49,052
1956	R	−28.7%	14,060	25,435	39,631
1952	R	−24.8%	13,612	22,667	36,490
1948	D	+0.7%	14,394	14,191	29,012
1944	R	−12.3%	12,166	15,613	27,915
1940	R	−1.3%	16,194	16,630	33,027
1936	D	+23.7%	17,715	10,769	29,298
1932	D	+18.6%	15,135	10,185	26,635
1928	R	−25.7%	8,709	14,840	23,892
1924	R	−32.7%	4,856	12,139	22,285
1920	R	−17.3%	7,529	10,865	19,324
1916	D	+30.6%	15,555	8,012	24,640
1912	D	+27.3%	12,028	5,109	25,385
1908	D	+9.6%	14,735	12,030	28,122
1904	R	−7.8%	14,491	17,013	32,265
1900	D	+26.0%	22,706	13,152	36,734
1896	D	+82.8%	18,236	1,624	20,062
1892	O	−37.8%	0	3,834	10,150
1888	R	−12.6%	5,674	7,386	13,619
1884	R	−12.3%	5,963	7,676	13,959
1880	R	−0.1%	8,159	8,178	16,660
1876	—	No data	—	—	—

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

German

20.7%

English

15.5%

Irish

13.1%

Italian

6.0%

American

3.4%

Scottish

2.9%

Polish

1.6%

Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 41.5 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.0%

2.2%

75–84

2.6%

5.3%

65–74

5.6%

6.7%

55–64

6.9%

7.0%

45–54

6.5%

7.9%

35–44

7.0%

7.2%

25–34

6.2%

3.8%

18–24

3.4%

7.8%

5–17

7.3%

2.4%

2.3%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$120,302

State Senate District 4 ranks near the middle of US counties.

State Senate District 4$120,302

Colorado$95,470

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

6.1%

Child poverty is below the national average.

Children under 186.1%

Working age (18–64)6.0%

Seniors (65+)7.3%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

90.7%

speak English only

Spanish4.7%

Other Indo-European2.3%

Asian & Pacific Islander1.9%

Other languages0.4%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Other Christian

15.2%

Catholic & Orthodox

12.6%

Mainline Protestant

2.3%

Methodist

1.4%

Baptist

0.8%

Pentecostal & Holiness

0.6%

Non-Christian

0.4%

Source · 2020 US Religion Census. Remaining 66.8% of residents not counted as adherents by any reporting body.

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.

The district's recent history is a story of close margins. The Democratic margin reached eighty-three points in 1896; the Republican margin reached forty-one points in 1972. Most other elections have been decided by single-digit points.

Its demographics — a population of 677,259, a 81% non-Hispanic-white share, a median household income of $120,302 — situate the district close to national averages on several dimensions.

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 →

Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

State Senate District 4, Colorado. Akashic. https://akashic.app/sld-upper/08004/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did State Senate District 4, Colorado vote in 2024?

In 2024, State Senate District 4, Colorado voted Democratic by 1.3 points (D+1), carried by the Democratic candidate. Out of 426,769 votes cast, 210,541 went Democratic and 204,799 went Republican.

What is State Senate District 4, Colorado's political archetype?

Akashic classifies State Senate District 4, Colorado as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 11 times, Republican 25 times, and other 1 times.

When did State Senate District 4, Colorado last vote Republican?

The most recent presidential election in which State Senate District 4, Colorado voted Republican was 2016.

How many people live in State Senate District 4, Colorado?

State Senate District 4, Colorado has a population of 677,259 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in State Senate District 4, Colorado?

Median household income in State Senate District 4, Colorado is $120,302 — above the national median of $80,734. The Colorado state median is $95,470.

What is the political history of State Senate District 4, Colorado?

Akashic tracks 38 presidential elections in State Senate District 4, Colorado from 1876 to 2024. Of those, 11 went Democratic and 25 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.

Colorado 4th State Senate District delivered D+1 in 2024 — close enough to flip again next time.

Key facts

Demographics

Compare two places, side by side

Frequently asked questions