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COUNTY · 2020 ACS

Boulder County

Colorado · 330,758 residents · 726 sq mi
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The short version

Boulder County is home to 330,758 people in Colorado. 63% of adults hold a bachelor's degree, against 33% nationally. Home values have more than doubled since 2000, reaching $539,100. 77% were living in the same home a year earlier. Renters pay $1,582 a month at the median. Median household income runs $87,476, well clear of the $66,278 US median.

At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 37.6
US median: 38.8
More educated
63% hold a bachelor's degree
US average: 33%
Less affordable
home values up 55%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
330,758
+14%since 2000
from 291,288 in 2000
1990 – 2025
Median age
37.6
+13%since 2000
from 33.4 in 2000
US average: 38.8
Land area
726 sq mi
Population, 1990 – 2024
215K246K278K310K341K19902000201020202024Boulder County
2024329K
1990201020202024
Age distribution, 2020
Under 54.2%(13,858)
US avg: 5.6%
5 to 95.1%(16,789)
US avg: 6.1%
10 to 145.9%(19,435)
US avg: 6.5%
15 to 198%(26,425)
US avg: 6.6%
20 to 249.2%(30,397)
US avg: 6.7%
25 to 3414.3%(47,326)
US avg: 13.5%
35 to 4412.7%(42,020)
US avg: 12.7%
45 to 5412.7%(41,996)
US avg: 12.3%
55 to 6412.5%(41,249)
US avg: 13.1%
65 to 749.7%(32,116)
US avg: 10%
75 to 844.2%(14,008)
US avg: 4.9%
85 and over1.6%(5,139)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$87,476
+4%inflation adjusted, since 2000
from $55,861 in 2000
US average: $66,278
1990 – 2024
Per capita income
$48,776
+68%since 2000
from $28,976 in 2000
US average: $35,364
Households earning $100K+
56.3%
+12.7 ptssince 2009
from 43.6% in 2009
US average: 43.9%
Poverty rate
11.2%
+1.7 ptssince 2000
from 9.5% in 2000
US average: 12.8%
Workforce by industry, 2020
Retail trade9.7%
US avg: 10%
Information9.1%
US avg: 11.1%
Other services5%
US avg: 6.6%
Wholesale trade5%
US avg: 6.7%
Arts, entertainment, food3.4%
US avg: 2%
Public administration3.2%
US avg: 4.7%
Finance & insurance2.7%
US avg: 5.5%
Professional, scientific, technical2.1%
US avg: 4.7%
Transportation & warehousing1.8%
US avg: 2.5%
Agriculture, forestry, fishing1.2%
US avg: 1.7%
Construction0.7%
US avg: 1.2%
Education & health services0.6%
US avg: 0.8%
Manufacturing0.5%
US avg: 0.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$539,100
+55%inflation adjusted, since 2000
from $231,000 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$1,582
+28%inflation adjusted, since 2000
from $825 in 2000
US average: $1,124
Owner-occupied
61.0%
−3.8 ptssince 2000
from 64.7% in 2000
39.0% rent
Persons per household
2.46 people
−1%since 2009
from 2.48 people in 2009
US average: 2.61
Afford Score
6.2
+14%since 2009
from 5.4 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic83.6%(243,512)
Black0.8%(2,393)
Hispanic / Latino10.5%(30,456)
Asian3%(8,834)
Other0%
2020
White, non-Hispanic74.1%(245,203)
Black1%(3,149)
Hispanic / Latino14.6%(48,168)
Asian4.9%(16,291)
Other3.3%(11,070)
Segregation Score
27
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican10%(32,390)
South American0.9%(2,807)
Central American0.6%(1,927)
Spaniard0.6%(1,872)
Puerto Rican0.4%(1,382)
Salvadoran0.3%(1,109)
Cuban0.3%(1,020)
Colombian0.3%(889)
Argentine0.2%(551)
Chilean0.1%(440)
Peruvian0.1%(395)
Guatemalan0.1%(302)
+ 10 more hispanic origin groups with data
Venezuelan0.1%(225)
Honduran0.1%(210)
Dominican0.1%(192)
Panamanian0.1%(165)
Ecuadorian0%(151)
Bolivian0%(53)
Uruguayan0%(40)
Asian origin
Chinese1.7%(5,447)
Asian Indian1%(3,370)
Korean0.5%(1,630)
Japanese0.4%(1,267)
Nepalese0.3%(840)
Filipino0.2%(713)
Vietnamese0.2%(678)
Thai0.1%(467)
Cambodian0.1%(195)
Malaysian0%(149)
Hmong0%(131)
Taiwanese0%(116)
+ 5 more asian origin groups with data
Pakistani0%(107)
Indonesian0%(104)
Burmese0%(94)
Bhutanese0%(10)
Pacific Islander origin
Chamorro0%(44)
Samoan0%(41)
Ancestry
German19%(61,636)
English12.5%(40,451)
Irish11.7%(38,091)
Italian5.3%(17,296)
Polish3.2%(10,423)
Scottish3.2%(10,265)
American3.1%(10,211)
French2.7%(8,770)
Norwegian2.6%(8,376)
Swedish2.4%(7,713)
Dutch1.7%(5,411)
Russian1.5%(4,875)
+ 47 more ancestry groups with data
Scotch-Irish1.5%(4,874)
British1.3%(4,207)
Welsh1.2%(3,950)
Danish1%(3,115)
Czech0.8%(2,745)
French Canadian0.7%(2,358)
Austrian0.5%(1,748)
Hungarian0.5%(1,683)
Lithuanian0.5%(1,641)
Swiss0.5%(1,607)
Greek0.5%(1,479)
Ukrainian0.4%(1,139)
Finnish0.3%(1,113)
Portuguese0.3%(953)
Belgian0.3%(950)
Canadian0.3%(934)
Iranian0.2%(784)
Slovak0.2%(616)
Romanian0.2%(583)
Armenian0.2%(542)
Croatian0.1%(446)
Lebanese0.1%(432)
Australian0.1%(376)
West Indian0.1%(351)
Slovene0.1%(329)
Israeli0.1%(308)
Turkish0.1%(256)
Brazilian0.1%(251)
Jamaican0.1%(222)
Arab0.1%(210)
Serbian0.1%(203)
Moroccan0.1%(202)
Ethiopian0.1%(174)
Latvian0%(155)
Bulgarian0%(117)
Egyptian0%(86)
Nigerian0%(44)
Haitian0%(37)
Syrian0%(22)
Guyanese0%(19)
Iraqi0%(12)
Jordanian0%(11)
Kenyan0%(9)
Section 05

Education

Bachelor's degree or higher
63.0%
+10.6 ptssince 2000
from 52.4% in 2000
US average: 32.9%
High school or higher
95.5%
+2.7 ptssince 2000
from 92.8% in 2000
US average: 88.5%
Graduate degree
28.4%
+7.2 ptssince 2000
from 21.2% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
23.5 min
+57%since 2000
from 15.0 min in 2000
US average: 26.9
Drive alone to work
62.7%
−4.3 ptssince 2009
from 67.0% in 2009
US average: 75.1%
No vehicle available
5.5%
+0.8 ptssince 2009
from 4.8% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
4.5%
−2.2 ptssince 2011
from 6.7% in 2011
US average: 5.4%
Labor force participation
68.1%
−1.9 ptssince 2011
from 69.9% in 2011
US average: 63.4%
Women 20-64 in the labor force
77.9%
US average: 73.3%
Management & professional
54.9%
+5.4 ptssince 2009
from 49.5% in 2009
US average: 39.3%
Section 08

People & community

Male
50.3%
−0.3 ptssince 2009
from 50.6% in 2009
Female
49.7%
+0.3 ptssince 2009
from 49.4% in 2009
Foreign born
10.1%
−0.8 ptssince 2009
from 10.9% in 2009
US average: 13.5%
Uninsured
4.5%
−6.8 ptssince 2013
from 11.3% in 2013
US average: 8.8%
Computer in household
96.4%
US average: 91.9%
Same house as last year
77.3%
US average: 86.2%
Marital status (2024)
Men 15+
Never married43.9%(62,587)
Married44.9%(63,984)
Widowed1.8%(2,562)
Divorced9.4%(13,365)
Women 15+
Never married35.9%(50,427)
Married46.4%(65,232)
Widowed5.7%(8,079)
Divorced12%(16,813)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
4.5%
−6.8 ptssince 2013
from 11.3% in 2013
US average: 8.8%
Employer-based
63.3%
US average: 55.4%
Direct-purchase
19.3%
US average: 13.7%
Medicare
14.5%
US average: 17.6%
Medicaid
11.8%
US average: 20.0%
VA health care
1.3%
US average: 2.3%
Any private
80.4%
US average: 68.1%
Any public
25.4%
US average: 35.2%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2020
Gulf War (2001 or later)19.1%(2,628)
US avg: 20.6%
Gulf War (1990s)16.7%(2,292)
US avg: 21.4%
Vietnam era35.7%(4,907)
US avg: 35.2%
Korean War8.6%(1,181)
US avg: 7.6%
World War II4.1%(563)
US avg: 2.9%

Share of the 13,730 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Head to head

Compare Boulder County to nearby counties

BOULDER COUNTY VS
Gilpin County
Income$95,361+9%
Home value$573,900+6%
Population6,073−98%
SEE FULL COMPARISON →
BOULDER COUNTY VS
Broomfield County
Income$123,874+42%
Home value$664,500+23%
Population79,174−76%
SEE FULL COMPARISON →
BOULDER COUNTY VS
Clear Creek County
Income$94,577+8%
Home value$608,500+13%
Population8,994−97%
SEE FULL COMPARISON →
BOULDER COUNTY VS
Denver County
Income$94,718+8%
Home value$616,000+14%
Population740,613+125%
SEE FULL COMPARISON →
Frequently asked

How many people live in Boulder County, Colorado?

Boulder County, Colorado has about 330,758 residents according to the 2020 American Community Survey.

What is the median household income in Boulder County, Colorado?

The typical household in Boulder County, Colorado earns about $87,476 a year. Half of households make more than that, and half make less.

Is Boulder County, Colorado expensive?

In Boulder County, Colorado, the median home is worth about $539,100, and the typical rent is about $1,582 a month.

How educated are people in Boulder County, Colorado?

About 63.0% of adults age 25 and over in Boulder County, Colorado hold a bachelor's degree or higher.

What is the poverty rate in Boulder County, Colorado?

About 11.2% of people in Boulder County, Colorado live below the federal poverty line.

Has Boulder County, Colorado grown since 1990?

Yes, Boulder County, Colorado has grown since 1990. The population has added about 105,419 residents, a change of about 47 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →