Population By Race and Ethnicity in Jefferson, CO in 2010

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2010, the 535,567 population of Jefferson County, Colorado comprised of 76,990 people who identified as Hispanic (14.38%), and 458,577 people who identified as Non-Hispanic (85.63%).

Race: The White Alone population was the largest racial group in Jefferson County, Colorado with a population of 496,402 (92.69%); Asian Alone population was the second largest racial group with a population of 14,574 (2.72%); and Two Or More Races was the third largest racial group with a population of 11,490 (2.15%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Colorado in 2010, with a population of 428,473 (80%); the second largest ethnic group was White Alone - Hispanic with a population of 67,929 (12.68%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 13,846 (2.59%).

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 2010
Total Population:
Race in Jefferson, CO in 2010
Total Population:
Ethnicity in Jefferson, CO in 2010
Total Population:
Population By Race in Jefferson , CO in 2010
Race Population Percentage
Black or African American Alone 6,265 1.17%
White Alone 496,402 92.69%
American Indian and Alaska Native Alone 6,236 1.16%
Asian Alone 14,574 2.72%
Native Hawaiian And Pacific Islander Alone 600 0.11%
Two Or More Races 11,490 2.15%
Population By Ethnicity in Jefferson , CO in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 1,227 0.23%
White Alone - Hispanic 67,929 12.68%
American Indian and Alaska Native Alone - Hispanic 3,585 0.67%
Asian Alone - Hispanic 728 0.14%
Native Hawaiian And Pacific Islander Alone - Hispanic 197 0.04%
Two Or More Races - Hispanic 3,324 0.62%
Black or African American Alone - Non Hispanic 5,038 0.94%
White Alone - Non Hispanic 428,473 80%
American Indian and Alaska Native Alone - Non Hispanic 2,651 0.5%
Asian Alone - Non Hispanic 13,846 2.59%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 403 0.08%
Two Or More Races - Non Hispanic 8,166 1.53%