Population By Race and Ethnicity in Ada County, ID in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 498,260 population of Ada County, Idaho comprised of 43,918 people who identified as Hispanic (8.81%), and 454,342 people who identified as Non-Hispanic (91.19%).

Race: The White Alone population was the largest racial group in Ada County, Idaho with a population of 457,470 (91.81%); Two Or More Races population was the second largest racial group with a population of 14,981 (3.01%); and Asian Alone was the third largest racial group with a population of 13,910 (2.79%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Ada County, Idaho in 2020, with a population of 418,483 (83.99%); the second largest ethnic group was White Alone - Hispanic with a population of 38,987 (7.83%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 13,466 (2.7%).

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

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

See this for other years:
Hispanics and Non Hispanics in Ada County, ID in 2020
Total Population:
Race in Ada County, ID in 2020
Total Population:
Ethnicity in Ada County, ID in 2020
Total Population:
Population By Race in Ada , ID in 2020
Race Population Percentage
Black or African American Alone 6,691 1.34%
White Alone 457,470 91.81%
American Indian and Alaska Native Alone 4,094 0.82%
Asian Alone 13,910 2.79%
Native Hawaiian And Pacific Islander Alone 1,114 0.22%
Two Or More Races 14,981 3.01%
Population By Ethnicity in Ada , ID in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 589 0.12%
White Alone - Hispanic 38,987 7.83%
American Indian and Alaska Native Alone - Hispanic 1,591 0.32%
Asian Alone - Hispanic 444 0.09%
Native Hawaiian And Pacific Islander Alone - Hispanic 128 0.03%
Two Or More Races - Hispanic 2,179 0.44%
Black or African American Alone - Non Hispanic 6,102 1.23%
White Alone - Non Hispanic 418,483 83.99%
American Indian and Alaska Native Alone - Non Hispanic 2,503 0.5%
Asian Alone - Non Hispanic 13,466 2.7%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 986 0.2%
Two Or More Races - Non Hispanic 12,802 2.57%