Population By Race and Ethnicity in Boulder County, CO in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 330,922 population of Boulder County, Colorado comprised of 45,667 people who identified as Hispanic (13.8%), and 285,255 people who identified as Non-Hispanic (86.2%).

Race: The White Alone population was the largest racial group in Boulder County, Colorado with a population of 297,552 (89.92%); Asian Alone population was the second largest racial group with a population of 16,441 (4.97%); and Two Or More Races was the third largest racial group with a population of 9,661 (2.92%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Boulder County, Colorado in 2020, with a population of 256,608 (77.54%); the second largest ethnic group was White Alone - Hispanic with a population of 40,944 (12.37%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 16,012 (4.84%).

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

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

See this for other years:
Hispanics and Non Hispanics in Boulder County, CO in 2020
Total Population:
Race in Boulder County, CO in 2020
Total Population:
Ethnicity in Boulder County, CO in 2020
Total Population:
Population By Race in Boulder , CO in 2020
Race Population Percentage
Black or African American Alone 4,038 1.22%
White Alone 297,552 89.92%
American Indian and Alaska Native Alone 2,966 0.9%
Asian Alone 16,441 4.97%
Native Hawaiian And Pacific Islander Alone 264 0.08%
Two Or More Races 9,661 2.92%
Population By Ethnicity in Boulder , CO in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 779 0.24%
White Alone - Hispanic 40,944 12.37%
American Indian and Alaska Native Alone - Hispanic 1,640 0.5%
Asian Alone - Hispanic 429 0.13%
Native Hawaiian And Pacific Islander Alone - Hispanic 85 0.03%
Two Or More Races - Hispanic 1,790 0.54%
Black or African American Alone - Non Hispanic 3,259 0.99%
White Alone - Non Hispanic 256,608 77.54%
American Indian and Alaska Native Alone - Non Hispanic 1,326 0.4%
Asian Alone - Non Hispanic 16,012 4.84%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 179 0.05%
Two Or More Races - Non Hispanic 7,871 2.38%