CensusEasy
COUNTY · 2020 ACS

Jefferson County

Colorado · 582,910 residents · 764 sq mi
Time machine
COMPARE TO
Part of the Denver metro area
Compare
The short version

Jefferson County is home to 582,910 people in Colorado. This is an unusually credentialed place: 46% of adults have a four-year degree. The typical home is worth $433,100, having more than doubled since 2000. The foreign-born share is 6%. The median household earns $87,793, about 32% above the national median. The poverty rate is 6.7%, under the national 12.8%.

At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 40.3
US median: 38.8
More educated
46% hold a bachelor's degree
US average: 33%
Less affordable
home values up 56%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
582,910
+11%since 2000
from 527,056 in 2000
1990 – 2025
Median age
40.3
+10%since 2000
from 36.8 in 2000
US average: 38.8
Land area
764 sq mi
Population, 1990 – 2024
424K467K511K554K597K19902000201020202024Jefferson County
2024579K
1990201020202024
Age distribution, 2020
Under 54.9%(28,688)
US avg: 5.6%
5 to 95.3%(30,860)
US avg: 6.1%
10 to 145.8%(33,658)
US avg: 6.5%
15 to 195.7%(33,341)
US avg: 6.6%
20 to 245.6%(32,643)
US avg: 6.7%
25 to 3414.8%(86,481)
US avg: 13.5%
35 to 4413.9%(81,148)
US avg: 12.7%
45 to 5412.5%(72,808)
US avg: 12.3%
55 to 6414%(81,575)
US avg: 13.1%
65 to 7410.7%(62,127)
US avg: 10%
75 to 844.9%(28,698)
US avg: 4.9%
85 and over1.9%(10,883)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$87,793
+2%inflation adjusted, since 2000
from $57,339 in 2000
US average: $66,278
1990 – 2024
Per capita income
$45,581
+62%since 2000
from $28,066 in 2000
US average: $35,364
Households earning $100K+
57.6%
+14.6 ptssince 2009
from 43.0% in 2009
US average: 43.9%
Poverty rate
6.7%
+1.6 ptssince 2000
from 5.2% in 2000
US average: 12.8%
Workforce by industry, 2020
Information10.7%
US avg: 11.1%
Wholesale trade7.6%
US avg: 6.7%
Other services7.5%
US avg: 6.6%
Retail trade7.3%
US avg: 10%
Public administration5%
US avg: 4.7%
Finance & insurance4.2%
US avg: 5.5%
Professional, scientific, technical3.3%
US avg: 4.7%
Transportation & warehousing2.7%
US avg: 2.5%
Arts, entertainment, food2.6%
US avg: 2%
Agriculture, forestry, fishing1.4%
US avg: 1.7%
Manufacturing0.9%
US avg: 0.5%
Education & health services0.9%
US avg: 0.8%
Construction0.4%
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$433,100
+56%inflation adjusted, since 2000
from $184,200 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$1,451
+27%inflation adjusted, since 2000
from $760 in 2000
US average: $1,124
Owner-occupied
69.3%
−3.2 ptssince 2000
from 72.5% in 2000
30.7% rent
Persons per household
2.49 people
+3%since 2009
from 2.42 people in 2009
US average: 2.61
Afford Score
4.9
+26%since 2009
from 3.9 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-Hispanic84.9%(447,416)
Black0.8%(4,312)
Hispanic / Latino10%(52,449)
Asian2.2%(11,855)
Other0%
2020
White, non-Hispanic74.7%(435,245)
Black1.1%(6,653)
Hispanic / Latino15.7%(91,514)
Asian3%(17,694)
Other3%(17,713)
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
Mexican10.8%(62,317)
Spaniard0.9%(5,210)
South American0.7%(3,830)
Puerto Rican0.4%(2,221)
Central American0.3%(1,988)
Cuban0.2%(1,115)
Peruvian0.2%(971)
Colombian0.2%(894)
Chilean0.1%(631)
Venezuelan0.1%(521)
Costa Rican0.1%(518)
Salvadoran0.1%(498)
+ 10 more hispanic origin groups with data
Guatemalan0.1%(375)
Nicaraguan0%(275)
Argentine0%(225)
Ecuadorian0%(219)
Dominican0%(214)
Bolivian0%(171)
Panamanian0%(161)
Honduran0%(157)
Paraguayan0%(105)
Uruguayan0%(14)
Asian origin
Vietnamese0.8%(4,443)
Chinese0.6%(3,626)
Japanese0.3%(1,691)
Asian Indian0.3%(1,687)
Korean0.2%(1,359)
Filipino0.2%(1,251)
Hmong0.1%(437)
Nepalese0.1%(321)
Thai0%(241)
Cambodian0%(207)
Taiwanese0%(194)
Laotian0%(89)
+ 6 more asian origin groups with data
Pacific Islander origin
Chamorro0%(271)
Samoan0%(101)
Tongan0%(16)
Ancestry
German22.1%(127,828)
Irish13%(74,980)
English12.4%(72,031)
Italian6.3%(36,568)
American3.6%(20,678)
Swedish3%(17,500)
Scottish2.9%(17,043)
Polish2.9%(17,028)
French2.8%(15,928)
Norwegian2.4%(14,135)
Dutch1.8%(10,697)
Scotch-Irish1.2%(6,787)
+ 48 more ancestry groups with data
Welsh1%(6,046)
Russian1%(5,931)
Danish1%(5,826)
Czech0.9%(5,238)
British0.8%(4,859)
French Canadian0.5%(2,995)
Swiss0.5%(2,685)
Austrian0.4%(2,537)
Hungarian0.4%(2,247)
Greek0.4%(2,171)
Finnish0.3%(1,544)
Ukrainian0.3%(1,526)
Canadian0.2%(1,387)
Lithuanian0.2%(1,369)
Portuguese0.2%(1,303)
Romanian0.2%(998)
Croatian0.2%(921)
Slovak0.1%(868)
Belgian0.1%(784)
Slovene0.1%(704)
Lebanese0.1%(667)
Serbian0.1%(477)
Iranian0.1%(424)
Australian0.1%(410)
Brazilian0.1%(409)
West Indian0.1%(402)
Turkish0.1%(323)
Palestinian0.1%(305)
Syrian0%(269)
Armenian0%(265)
Ghanaian0%(259)
Jordanian0%(244)
Israeli0%(232)
Jamaican0%(216)
Latvian0%(199)
Bulgarian0%(189)
Egyptian0%(187)
Moroccan0%(129)
Nigerian0%(119)
Ethiopian0%(104)
Kenyan0%(63)
Arab0%(62)
Somali0%(48)
Haitian0%(42)
Iraqi0%(14)
Guyanese0%(10)
Section 05

Education

Bachelor's degree or higher
46.4%
+9.9 ptssince 2000
from 36.5% in 2000
US average: 32.9%
High school or higher
94.8%
+3.0 ptssince 2000
from 91.8% in 2000
US average: 88.5%
Graduate degree
16.8%
+4.7 ptssince 2000
from 12.1% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
27.8 min
+50%since 2000
from 18.5 min in 2000
US average: 26.9
Drive alone to work
75.1%
−2.7 ptssince 2009
from 77.9% in 2009
US average: 75.1%
No vehicle available
3.8%
−0.6 ptssince 2009
from 4.4% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
4.0%
−3.3 ptssince 2011
from 7.2% in 2011
US average: 5.4%
Labor force participation
69.2%
−1.6 ptssince 2011
from 70.7% in 2011
US average: 63.4%
Women 20-64 in the labor force
79.7%
US average: 73.3%
Management & professional
48.2%
+6.6 ptssince 2009
from 41.6% in 2009
US average: 39.3%
Section 08

People & community

Male
49.9%
+0.1 ptssince 2009
from 49.8% in 2009
Female
50.1%
−0.1 ptssince 2009
from 50.2% in 2009
Foreign born
6.2%
−0.2 ptssince 2009
from 6.4% in 2009
US average: 13.5%
Uninsured
5.3%
−6.1 ptssince 2013
from 11.4% in 2013
US average: 8.8%
Computer in household
95.7%
US average: 91.9%
Same house as last year
84.8%
US average: 86.2%
Marital status (2024)
Men 15+
Never married35.2%(86,875)
Married53%(130,913)
Widowed2.2%(5,536)
Divorced9.6%(23,692)
Women 15+
Never married27.9%(68,513)
Married51.7%(126,878)
Widowed6.7%(16,353)
Divorced13.7%(33,584)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
5.3%
−6.1 ptssince 2013
from 11.4% in 2013
US average: 8.8%
Employer-based
63.7%
US average: 55.4%
Direct-purchase
15.3%
US average: 13.7%
Medicare
17.2%
US average: 17.6%
Medicaid
13.2%
US average: 20.0%
VA health care
2.0%
US average: 2.3%
Any private
76.9%
US average: 68.1%
Any public
29.1%
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)19.7%(7,068)
US avg: 20.6%
Gulf War (1990s)18.3%(6,579)
US avg: 21.4%
Vietnam era38%(13,617)
US avg: 35.2%
Korean War7.2%(2,598)
US avg: 7.6%
World War II2.3%(829)
US avg: 2.9%

Share of the 35,879 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

Places similar to Jefferson County

Washington County
Pop 611,708
Johnson County
Pop 636,906
Plymouth County
Pop 546,829
Union County
Pop 601,863
Places similar to Jefferson County
Head to head

Compare Jefferson County to nearby counties

JEFFERSON COUNTY VS
Denver County
Income$94,718+8%
Home value$616,000+42%
Population740,613+28%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Clear Creek County
Income$94,577+8%
Home value$608,500+40%
Population8,994−98%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Douglas County
Income$149,594+70%
Home value$713,600+65%
Population399,396−31%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Gilpin County
Income$95,361+9%
Home value$573,900+33%
Population6,073−99%
SEE FULL COMPARISON →
Frequently asked

How many people live in Jefferson County, Colorado?

Jefferson County, Colorado has about 582,910 residents according to the 2020 American Community Survey.

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

The typical household in Jefferson County, Colorado earns about $87,793 a year. Half of households make more than that, and half make less.

Is Jefferson County, Colorado expensive?

In Jefferson County, Colorado, the median home is worth about $433,100, and the typical rent is about $1,451 a month.

How educated are people in Jefferson County, Colorado?

About 46.4% of adults age 25 and over in Jefferson County, Colorado hold a bachelor's degree or higher.

What is the poverty rate in Jefferson County, Colorado?

About 6.7% of people in Jefferson County, Colorado live below the federal poverty line.

Has Jefferson County, Colorado grown since 1990?

Yes, Jefferson County, Colorado has grown since 1990. The population has added about 144,480 residents, a change of about 33 percent over that period.

Keep going

Explore from here

Up the hierarchy
All counties in Colorado

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

How we source and harmonize this data →