Population By Race and Ethnicity in Arapahoe, CO in 2017

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2017, the 645,080 population of Arapahoe County, Colorado comprised of 123,857 people who identified as Hispanic (19.2%), and 521,223 people who identified as Non-Hispanic (80.8%).

Race: The White Alone population was the largest racial group in Arapahoe County, Colorado with a population of 496,108 (76.91%); Black or African American Alone population was the second largest racial group with a population of 72,850 (11.29%); and Asian Alone was the third largest racial group with a population of 40,947 (6.35%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Arapahoe County, Colorado in 2017, with a population of 389,637 (60.4%); the second largest ethnic group was White Alone - Hispanic with a population of 106,471 (16.51%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 67,296 (10.43%).

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

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

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Hispanics and Non Hispanics in Arapahoe, CO in 2017
Total Population:
Race in Arapahoe, CO in 2017
Total Population:
Ethnicity in Arapahoe, CO in 2017
Total Population:
Population By Race in Arapahoe , CO in 2017
Race Population Percentage
Black or African American Alone 72,850 11.29%
White Alone 496,108 76.91%
American Indian and Alaska Native Alone 7,427 1.15%
Asian Alone 40,947 6.35%
Native Hawaiian And Pacific Islander Alone 1,990 0.31%
Two Or More Races 25,758 3.99%
Population By Ethnicity in Arapahoe , CO in 2017
Ethnicity Population Percentage
Black or African American Alone - Hispanic 5,554 0.86%
White Alone - Hispanic 106,471 16.51%
American Indian and Alaska Native Alone - Hispanic 4,628 0.72%
Asian Alone - Hispanic 1,371 0.21%
Native Hawaiian And Pacific Islander Alone - Hispanic 389 0.06%
Two Or More Races - Hispanic 5,444 0.84%
Black or African American Alone - Non Hispanic 67,296 10.43%
White Alone - Non Hispanic 389,637 60.4%
American Indian and Alaska Native Alone - Non Hispanic 2,799 0.43%
Asian Alone - Non Hispanic 39,576 6.14%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 1,601 0.25%
Two Or More Races - Non Hispanic 20,314 3.15%