Ada County, Idaho 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 494.97K population of Ada County, ID residents comprised of 45.22K residents who identified as Hispanic or Latino (9.14%), and 449.74K residents who identified as Non-Hispanic (90.86%).

Race: The White Alone population was the largest racial group in Ada County, ID, with a population of 410.26K (82.89%). The Two Or More Races population was the second largest racial group in Ada County, ID, with a population of 41.86K (8.46%). The Some Other Race Alone population was the third largest racial group in Ada County, ID, with a population of 16.27K (3.29%). The smallest racial group in Ada County, ID was Native Hawaiian And Pacific Islander Alone with a population of 1.32K (0.27%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Ada County, ID, with a population of 398.00K (80.41%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Ada County, ID, with a population of 24.39K (4.93%). The Hispanic - Two or More Races population was the third largest ethnic group in Ada County, ID, with a population of 17.47K (3.53%). The smallest ethnic group in Ada County, ID was Hispanic - Native Hawaiian & Pac. Islander with a population of 99 (0.02%).

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

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

Ada County, ID Hispanics and Non Hispanics Population in Census 2020
Total Population:494,967
90.86%9.14%
Non Hispanic (90.86%)
Hispanic (9.14%)
Ada County, ID Racial Groups in Census 2020
Total Population:494,967
82.89%8.46%
White Alone (82.89%)
Two or more races (8.46%)
Some Other Race Alone (3.29%)
Asian Alone (2.81%)
Black or African American Alone (1.63%)
American Indian and Alaska Native Alone (0.66%)
Native Hawaiian And Pacific Islander Alone (0.27%)
Ada County, ID Ethnicity Groups in Census 2020
Total Population:494,967
80.41%
Non-Hispanic - White Alone (80.41%)
Non-Hispanic - Two or more races (4.93%)
Hispanic - Two or more races (3.53%)
Hispanic - Some Other Race Alone (2.79%)
Non-Hispanic - Asian Alone (2.76%)
Hispanic - White Alone (2.48%)
Non-Hispanic - Black or African American Alone (1.56%)
All Other Ethnicities (1.55%)
Ada County, ID Population of Racial Groups in Census 2020
Race
Population
% of County Population
White Alone 410,263 82.89
Two Or More Races 41,857 8.46
Some Other Race Alone 16,268 3.29
Asian Alone 13,929 2.81
Black or African American Alone 8,058 1.63
American Indian and Alaska Native Alone 3,274 0.66
Native Hawaiian And Pacific Islander Alone 1,318 0.27
Items per page:
1 – 7 of 7
Ada County, ID Population of Ethnicity Groups in Census 2020
Ethnicity
Population
% of County Population
Non-Hispanic - White Alone 397,998 80.41
Non-Hispanic - Two or More Races 24,389 4.93
Hispanic - Two or More Races 17,468 3.53
Hispanic - Some Other Race Alone 13,783 2.79
Non-Hispanic - Asian Alone 13,651 2.76
Hispanic - White Alone 12,265 2.48
Non-Hispanic - Black Alone 7,733 1.56
Non-Hispanic - Some Other Race Alone 2,485 0.50
Non-Hispanic - American Indian & Alaska Native 2,269 0.46
Non-Hispanic - Native Hawaiian & Pac. Islander 1,219 0.25
Hispanic - American Indian & Alaska Native 1,005 0.20
Hispanic - Black Alone 325 0.07
Hispanic - Asian Alone 278 0.06
Hispanic - Native Hawaiian & Pac. Islander 99 0.02
Items per page:
1 – 14 of 14