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Boulder, CO

Boulder, CO

Latest: 2024↓ R+0.8 vs 2020

Safe Democratic — 329K residents — 1 counties

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Race & ancestry
Group%
▶White (Non-Hispanic)(13)
74.5%
▶Hispanic / Latino(19)
14.7%
▶Black / African American(11)
0.8%
▶Asian(6)
4.7%
▶Middle Eastern / North African(10)
0.8%
▶Native American / Alaska Native(2)
0.3%
▶Native Hawaiian / Pacific Islander(3)
0.1%
Multiracial / Other
4.8%
View full demographics →
Religious adherence
Tradition% Pop% Adherents
Catholic16.1%43.9%
Evangelical Protestant12.8%34.8%
Other4.1%11.3%
Mainline Protestant3.4%9.3%
LDS (Mormon)0.8%2.1%
Orthodox Christian0.2%0.6%
Non-religious63.4%—
View full religion →
Presidential results
YearResult
2024Harris+55.8
2020Biden+56.6
2016Clinton+48.3
2012Obama+41.8
2008Obama+46.1
2004Kerry+33.9
2000Gore+13.7
1996Clinton+17.6
1992Clinton+24.5
View full election history →
Similarity Explorer

Similar metro areas

Nearest neighbors matched on the same place-page feature set used across the dossier system.
8 visible matches
Constituent Geography

Counties in Boulder, CO

2024 presidential results across the counties that make up this geography.
Sort:
CountyPop.MarginDemRepTotal
Boulder329K
D+55.8
150,14940,758196,150
1 countiesTotal votes: 196,150
Historian Query

Ask the Historian

Explore Boulder, CO's political evolution with the Historian
Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
Boulder, COCensus 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) 74.5%Hispanic 14.7%Multiracial 4.8%Asian 4.7%Black 0.8%Native American 0.3%
GroupBoulder, CONational
▶White (Non-Hispanic)(13)
74.5%57.4%
▶Hispanic / Latino(19)
14.7%19.3%
Multiracial / Other
4.8%4.0%
▶Asian(6)
4.7%6.0%
▶Black / African American(11)
0.8%12.2%
▶Middle Eastern / North African(10)
0.8%0.9%
▶Native American / Alaska Native(2)
0.3%0.9%
▶Native Hawaiian / Pacific Islander(3)
0.1%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).

Religious Adherents

Population that are religious adherents:
36.6%(120.4K people)
U.S. Religion Census 2020
Browse all religions
Tradition% Pop% AdherentsUS PopUS Adherents
Catholic
16.1%43.9%——
Evangelical Protestant
12.8%34.8%——
Other
4.1%11.3%——
Mainline Protestant
3.4%9.3%——
LDS (Mormon)
0.8%2.1%——
Orthodox Christian
0.2%0.6%——
Non-religiousPopulation
63.4%———
Click the chevron to expand denominations. Tradition and denomination rows label both share of total population and share of all religious adherents. Non-religious is shown as a share of total population only.

Who lives in the Boulder, CO metro area? 328,961 residents across 1 counties.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.
Boulder, CO vs National329K residents
Population & electorate

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

Total population
Local vs state vs U.S.
329K
local
329KNational 334.9M
Share of U.S. population
Local vs state vs U.S.
0.10%
local
0.10%National 100%
Voting-age population
Local vs state vs U.S.
78.4%
local
78.4%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.
$103,994
local
$103,994National $83,960
Poverty rate
Local vs state vs U.S.
11.2%
local
11.2%National 12.5%
College degree
Local vs state vs U.S.
64.2%
local
64.2%National 35.6%
Homeownership
Local vs state vs U.S.
62.0%
local
62.0%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.
37.7 yrs
local
37.7 yrsNational 39.1 yrs
Age 18–29
Local vs state vs U.S.
22.3%
local
22.3%National 15.7%
Age 65+
Local vs state vs U.S.
16.4%
local
16.4%National 17.0%
Foreign born
Local vs state vs U.S.
10.1%
local
10.1%National 14.1%
Non-English at home
Local vs state vs U.S.
15.1%
local
15.1%National 22.2%
English only
Local vs state vs U.S.
84.9%
local
84.9%National 77.8%
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