Population By Race and Ethnicity in Jefferson, CO in 2020

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2020, the 583,081 population of Jefferson County, Colorado comprised of 91,719 people who identified as Hispanic (15.73%), and 491,362 people who identified as Non-Hispanic (84.27%).

Race: The White Alone population was the largest racial group in Jefferson County, Colorado with a population of 532,101 (91.26%); Asian Alone population was the second largest racial group with a population of 18,510 (3.18%); and Two Or More Races was the third largest racial group with a population of 15,540 (2.67%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Colorado in 2020, with a population of 451,386 (77.41%); the second largest ethnic group was White Alone - Hispanic with a population of 80,715 (13.84%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 17,613 (3.02%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Jefferson, Colorado.

You can find similar information for other Colorado counties, and for Colorado.

See this for other years:
Hispanics and Non Hispanics in Jefferson, CO in 2020
Total Population:
Race in Jefferson, CO in 2020
Total Population:
Ethnicity in Jefferson, CO in 2020
Total Population:
Population By Race in Jefferson , CO in 2020
Race Population Percentage
Black or African American Alone 8,912 1.53%
White Alone 532,101 91.26%
American Indian and Alaska Native Alone 7,230 1.24%
Asian Alone 18,510 3.18%
Native Hawaiian And Pacific Islander Alone 788 0.14%
Two Or More Races 15,540 2.67%
Population By Ethnicity in Jefferson , CO in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 1,635 0.28%
White Alone - Hispanic 80,715 13.84%
American Indian and Alaska Native Alone - Hispanic 4,278 0.73%
Asian Alone - Hispanic 897 0.15%
Native Hawaiian And Pacific Islander Alone - Hispanic 226 0.04%
Two Or More Races - Hispanic 3,968 0.68%
Black or African American Alone - Non Hispanic 7,277 1.25%
White Alone - Non Hispanic 451,386 77.41%
American Indian and Alaska Native Alone - Non Hispanic 2,952 0.51%
Asian Alone - Non Hispanic 17,613 3.02%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 562 0.1%
Two Or More Races - Non Hispanic 11,572 1.99%