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Population Review

Jefferson County, CO — Population & Demographics

Jefferson County, CO has a population of 579,715. The median household income is $107,800 and the median age is 40.4.

579,715

Population

$107,800

Median Income

$604,400

Median Home Value

40.4

Median Age

Race & Ethnicity

White82.0%
Black or African American1.1%
Asian0.1%
Hispanic or Latino (any race)2.3%
Two or More Races0.0%

Economy & Income

$107,800

Median Household Income

$58,142

Per Capita Income

3.7%

Poverty Rate

2.7%

Unemployment

Housing

$604,400

Median Home Value

$1,792

Median Rent

70.6%

Homeownership

Education

95.5%

High School+

50.7%

Bachelor's+

Frequently Asked Questions

Jefferson County, CO has a population of 579,715 according to Census ACS 2023 data.

The median household income in Jefferson County, CO is $107,800.

Data from the American Community Survey (ACS) 5-Year estimates.