Arapahoe County, Colorado Census 2020 Population By Race and Ethnicity

Updated on April 9, 2023.

According to the data from the US 2020 decennial Census, in April 2020, the 655.07K population of Arapahoe County, CO residents comprised of 135.73K residents who identified as Hispanic or Latino (20.72%), and 519.34K residents who identified as Non-Hispanic (79.28%).

Race: The White Alone population was the largest racial group in Arapahoe County, CO, with a population of 396.03K (60.46%). The Two Or More Races population was the second largest racial group in Arapahoe County, CO, with a population of 82.83K (12.65%). The Black or African American Alone population was the third largest racial group in Arapahoe County, CO, with a population of 70.79K (10.81%). The smallest racial group in Arapahoe County, CO was Native Hawaiian And Pacific Islander Alone with a population of 1.78K (0.27%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Arapahoe County, CO, with a population of 368.05K (56.18%). The Non-Hispanic - Black Alone population was the second largest ethnic group in Arapahoe County, CO, with a population of 68.15K (10.40%). The Hispanic - Some Other Race Alone population was the third largest ethnic group in Arapahoe County, CO, with a population of 50.81K (7.76%). The smallest ethnic group in Arapahoe County, CO was Hispanic - Native Hawaiian & Pac. Islander with a population of 143 (0.02%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in Arapahoe County, Colorado from the 2020 decennial census.

You can see similar information for other Colorado counties and also for the state of Colorado.

Arapahoe County, CO Hispanics and Non Hispanics Population in Census 2020
Total Population:
Arapahoe County, CO Racial Groups in Census 2020
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Arapahoe County, CO Ethnicity Groups in Census 2020
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Arapahoe County, CO Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 70787 10.81
White Alone 396027 60.46
American Indian and Alaska Native Alone 6820 1.04
Asian Alone 42472 6.48
Native Hawaiian And Pacific Islander Alone 1777 0.27
Some Other Race Alone 54355 8.30
Two Or More Races 82832 12.65
Arapahoe County, CO Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 368047 56.18
Non-Hispanic - Black Alone 68152 10.40
Hispanic - Some Other Race Alone 50806 7.76
Hispanic - Two or More Races 49382 7.54
Non-Hispanic - Asian Alone 41855 6.39
Non-Hispanic - Two or More Races 33450 5.11
Hispanic - White Alone 27980 4.27
Hispanic - American Indian & Alaska Native 4166 0.64
Non-Hispanic - Some Other Race Alone 3549 0.54
Non-Hispanic - American Indian & Alaska Native 2654 0.41
Hispanic - Black Alone 2635 0.40
Non-Hispanic - Native Hawaiian & Pac. Islander 1634 0.25
Hispanic - Asian Alone 617 0.09
Hispanic - Native Hawaiian & Pac. Islander 143 0.02