Population By Race and Ethnicity in Boulder County, CO in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 318,408 population of Boulder County, Colorado comprised of 43,494 people who identified as Hispanic (13.66%), and 274,914 people who identified as Non-Hispanic (86.34%).

Race: The White Alone population was the largest racial group in Boulder County, Colorado with a population of 288,526 (90.62%); Asian Alone population was the second largest racial group with a population of 15,081 (4.74%); and Two Or More Races was the third largest racial group with a population of 8,399 (2.64%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Boulder County, Colorado in 2015, with a population of 249,194 (78.26%); the second largest ethnic group was White Alone - Hispanic with a population of 39,332 (12.35%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 14,742 (4.63%).

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 2015
Total Population:
Race in Boulder County, CO in 2015
Total Population:
Ethnicity in Boulder County, CO in 2015
Total Population:
Population By Race in Boulder , CO in 2015
Race Population Percentage
Black or African American Alone 3,420 1.07%
White Alone 288,526 90.62%
American Indian and Alaska Native Alone 2,749 0.86%
Asian Alone 15,081 4.74%
Native Hawaiian And Pacific Islander Alone 233 0.07%
Two Or More Races 8,399 2.64%
Population By Ethnicity in Boulder , CO in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 638 0.2%
White Alone - Hispanic 39,332 12.35%
American Indian and Alaska Native Alone - Hispanic 1,556 0.49%
Asian Alone - Hispanic 339 0.11%
Native Hawaiian And Pacific Islander Alone - Hispanic 67 0.02%
Two Or More Races - Hispanic 1,562 0.49%
Black or African American Alone - Non Hispanic 2,782 0.87%
White Alone - Non Hispanic 249,194 78.26%
American Indian and Alaska Native Alone - Non Hispanic 1,193 0.38%
Asian Alone - Non Hispanic 14,742 4.63%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 166 0.05%
Two Or More Races - Non Hispanic 6,837 2.15%