How did CO-SD-03, Colorado vote in the 2024 presidential election?

CO-SD-03, Colorado voted Republican in 2024 with a margin of R+5.1. Kamala D Harris received 39,328 votes and Donald Trump received 43,688 out of 85,120 total votes cast, a 6.9-point shift toward Republicans from 2020.

What is CO-SD-03, Colorado's political history?

CO-SD-03, Colorado has 5 presidential elections on record, spanning 2008 to 2024. Democrats have won 3 and Republicans 2 of those contests. The largest single-election swing was 14.8 points in 2016.

What are the demographics of CO-SD-03, Colorado?

CO-SD-03, Colorado has a population of 168,162 according to the 2020 Census. The racial composition is 50.9% non-Hispanic white, 41.6% Hispanic, 2.2% Black. About 26% of residents hold a bachelor's degree or higher. Median household income is $64,010.

Which places are most similar to CO-SD-03, Colorado?

Based on demographic and electoral similarity analysis, the three most similar state senate districts to CO-SD-03, Colorado are New Mexico State Senate District 35, New Mexico State Senate District 28, Colorado State Senate District 21. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

Colorado State Senate District 3

Colorado · Latest: 2024↓ R+6.9 vs 2020

Shifted 6.9pp toward Republicans in 2024 — 168K residents

Ask Atlas Ask Historian Open in Explore CompareShare image

Presidential margin · 2008 → 2024

Full history

2008
D+14.9
Obama
2012
D+14.3
Obama
2016
R+0.5
Trump
2020
D+1.7
Biden
2024
R+5.1
Trump

Who lives here

Full breakdown

White50.9%
Hispanic41.6%
Native American2.3%

Economy & age

Population: 168K
Median age: 40.4; +1.3pp vs U.S.
Median income: $64K; −$20K vs U.S.
College+: 26%; −10.0pp vs U.S.

Faith & language

Full detail

Catholic17.6%
Evangelical10.4%

90% English only10% Non-English

Similarity Explorer

Similar state senate districts

Nearest neighbors matched on the same place-page feature set used across the dossier system.

8 visible matches

New Mexico State Senate District 35NM

Diverse urban competitive

R+13.1

Similarity score95%

New Mexico State Senate District 28NM

Diverse urban competitive

R+1.5

Similarity score94%

Colorado State Senate District 21CO

Diverse urban competitive

D+3.7

Similarity score92%

Florida State Senate District 38FL

Diverse urban competitive

R+10.3

Similarity score89%

New Mexico State Senate District 8NM

Diverse urban competitive

D+8.7

Similarity score89%

New Mexico State Senate District 31NM

Diverse urban competitive

D+8.1

Similarity score89%

New Mexico State Senate District 14NM

Diverse urban competitive

D+12.3

Similarity score87%

New Mexico State Senate District 30NM

Diverse urban competitive

D+6.8

Similarity score86%

Historian Query

Ask the Historian

Explore CO-SD-03's political evolution with the Historian

“How has Colorado State Senate District 3 voted in presidential elections?”

Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.

CO-SD-03Census ACS 2024Ancestry detail available

Census race profile

Major Census race and ethnicity groups shown as a share of total population.

Expand rows for ancestry detail

White (Non-Hispanic) 50.9%Hispanic 41.6%Native American 2.3%Black 2.2%Multiracial 1.9%Asian 1.0%

Group	CO-SD-03	State	National
▶White (Non-Hispanic)(13)	50.9%	64.8%	57.4%
▶Hispanic / Latino(15)	41.6%	22.5%	19.3%
▶Native American / Alaska Native(5)	2.3%	1.1%	0.9%
▶Black / African American(8)	2.2%	4.0%	12.2%
Multiracial / Other	1.9%	4.1%	4.0%
▶Asian(6)	1.0%	3.3%	6.0%
▶Middle Eastern / North African(7)	0.4%	—	0.9%
▶Native Hawaiian / Pacific Islander(2)	0.1%	0.2%	0.2%

Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

Black / African American (estimated remainder) is derived as Black population share minus reported Sub-Saharan African and West Indian ancestry. It is shown as an estimated ancestry detail, not a standalone Census ancestry category.

MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).

Who lives in Colorado State Senate District 3? 168,162 residents as of the 2020 Census.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.

CO-SD-03 vs Colorado vs National168K residents

26% of adults hold a bachelor's degree — 7pp below the national average. Places with similar education levels vote R+3 on average nationally.

Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population

Local vs state vs U.S.

168K

local

168KState 5.9MNational 334.9M

Share of U.S. population

Local vs state vs U.S.

0.05%

local

0.05%National 100%

Voting-age population

Local vs state vs U.S.

77.8%

local

77.8%State 76.9%National 75.7%

Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income

Local vs state vs U.S.

$64,010

local

$64,010State $97,187National $83,960

Poverty rate

Local vs state vs U.S.

14.6%

local

14.6%State 9.5%National 12.5%

College degree

Local vs state vs U.S.

25.6%

local

25.6%State 45.5%National 35.6%

Homeownership

Local vs state vs U.S.

68.9%

local

68.9%State 66.2%National 65.2%

Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age

Local vs state vs U.S.

40.4 yrs

local

40.4 yrsState 37.9 yrsNational 39.1 yrs

Age 18–29

Local vs state vs U.S.

14.8%

local

14.8%State 16.8%National 15.7%

Age 65+

Local vs state vs U.S.

19.9%

local

19.9%State 15.6%National 17.0%

Foreign born

Local vs state vs U.S.

4.1%

local

4.1%State 9.8%National 14.1%

Non-English at home

Local vs state vs U.S.

10.1%

local

10.1%State 16.2%National 22.2%

English only

Local vs state vs U.S.

89.9%

local

89.9%State 83.8%National 77.8%

Voter Turnout

Turnout in CO-SD-03

Turnout % = votes cast ÷ voting-age population (VAP). Source: PL 94-171 2020 Census.

2024 Turnout

65.0%

vs Previous

-2.2pp

Voting-Age Pop

130,863

History

2008–2024

Contained geographies

Counties in CO-SD-03

Counties that overlap CO-SD-03.

Counties

(1)

Pueblo100%

Other Colorado State Senate Districts

68 total

Name	Margin ↓
CO-SD-18	D+68.0
CO-SD-31	D+64.3
CO-SD-33	D+61.5
CO-SD-34	D+57.7
CO-SD-32	D+47.6
CO-SD-14	D+42.7
CO-SD-17	D+39.6
CO-SD-22	D+32.9
CO-SD-26	D+30.0
CO-SD-29	D+27.0
CO-SD-28	D+25.6
CO-SD-25	D+23.1
CO-SD-19	D+19.1
CO-SD-20	D+17.3
CO-SD-16	D+12.8
CO-SD-27	D+11.9
CO-SD-08	D+10.2
CO-SD-15	D+7.7
CO-SD-24	D+6.8
CO-SD-11	D+4.3
CO-SD-12	D+4.0
CO-SD-21	D+3.7
CO-SD-30	D+2.5
CO-SD-06	D+0.6
CO-SD-05	R+0.7

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