US Census Data

Adams County vs Jefferson County

A side-by-side comparison of Adams County and Jefferson County: population, income, housing, and more.

Adams County and Jefferson County are counties in Colorado. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Jefferson County has the higher population (579,715 vs 524,408 in Adams County). Jefferson County has the higher median household income ($107,800 vs $91,387 in Adams County). Jefferson County has the higher median home value ($604,400 vs $458,400 in Adams County).

Population, income & housing

Adams CountyJefferson County
Population524,408579,715
Median age34.6 yrs40.4 yrs
Median household income$91,387$107,800
Median home value$458,400$604,400
Median gross rent$1,713$1,792
Housing units191,765251,183
Homeownership rate68.9%70.6%
Bachelor's degree or higher28.0%50.7%
Unemployment rate4.6%3.9%

Trends (ACS 5-year, 2019–2023)

Adams CountyJefferson County
Population504,108 → 524,408 (+4.0%)574,798 → 579,715 (+0.9%)
Median household income$71,202 → $91,387 (+28.3%)$82,986 → $107,800 (+29.9%)
Median home value$307,600 → $458,400 (+49.0%)$397,700 → $604,400 (+52.0%)
Median gross rent$1,346 → $1,713 (+27.3%)$1,376 → $1,792 (+30.2%)

Adams County

Population
504,108524,408
Median household income
$71,202$91,387
Median home value
$307,600$458,400
Median gross rent
$1,346$1,713

Jefferson County

Population
574,798579,715
Median household income
$82,986$107,800
Median home value
$397,700$604,400
Median gross rent
$1,376$1,792

Age & race/ethnicity

Age distribution (share)

Adams CountyJefferson County
Under 56.5%4.8%
5 to 1718.9%14.1%
18 to 249.1%7.5%
25 to 3416.2%15.2%
35 to 4415.3%14.8%
45 to 5412.3%12.5%
55 to 6410.7%13.6%
65 to 747.0%10.8%
75 and over4.0%6.7%

Race & ethnicity (share)

Adams CountyJefferson County
White (non-Hispanic)46.2%75.9%
Black or African American3.3%1.1%
American Indian & Alaska Native0.3%0.3%
Asian3.9%2.8%
Native Hawaiian & Pacific Islander0.2%0.1%
Some other race0.5%0.3%
Two or more races3.3%3.7%
Hispanic or Latino42.3%15.9%

Educational attainment (age 25+)

Share of adults 25+

Adams CountyJefferson County
No high school diploma15.0%4.5%
High school graduate28.6%18.5%
Some college or associate's28.4%26.2%
Bachelor's degree19.1%32.1%
Graduate or professional degree8.9%18.7%

Commute to work

How workers get to work (share)

Adams CountyJefferson County
Drove alone71.4%67.0%
Carpooled10.7%5.8%
Public transit2.1%1.7%
Walked1.1%1.4%
Bicycle0.2%0.6%
Worked from home13.4%22.3%
Other means1.2%1.2%

Housing

Units in structure (share)

Adams CountyJefferson County
1-unit, detached62.6%64.1%
1-unit, attached8.6%8.8%
2 to 4 units3.4%4.4%
5 to 19 units11.0%11.5%
20 or more units8.5%10.3%
Mobile home & other5.8%1.0%

Poverty & households

Adams CountyJefferson County
Poverty rate9.4%6.7%
Average household size2.822.38
Mean commute (minutes)3027
Median year structure built19901980

Full profiles

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