Population By Race and Ethnicity in Washington, ID in 2020

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2020, the 10,558 population of Washington County, Idaho comprised of 1,671 people who identified as Hispanic (15.83%), and 8,887 people who identified as Non-Hispanic (84.17%).

Race: The White Alone population was the largest racial group in Washington County, Idaho with a population of 9,942 (94.17%); Two Or More Races population was the second largest racial group with a population of 252 (2.39%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 178 (1.69%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Washington County, Idaho in 2020, with a population of 8,449 (80.03%); the second largest ethnic group was White Alone - Hispanic with a population of 1,493 (14.14%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 202 (1.91%).

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

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

See this for other years:
Hispanics and Non Hispanics in Washington, ID in 2020
Total Population:
Race in Washington, ID in 2020
Total Population:
Ethnicity in Washington, ID in 2020
Total Population:
Population By Race in Washington , ID in 2020
Race Population Percentage
Black or African American Alone 66 0.63%
White Alone 9,942 94.17%
American Indian and Alaska Native Alone 178 1.69%
Asian Alone 106 1%
Native Hawaiian And Pacific Islander Alone 14 0.13%
Two Or More Races 252 2.39%
Population By Ethnicity in Washington , ID in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 26 0.25%
White Alone - Hispanic 1,493 14.14%
American Indian and Alaska Native Alone - Hispanic 71 0.67%
Asian Alone - Hispanic 20 0.19%
Native Hawaiian And Pacific Islander Alone - Hispanic 11 0.1%
Two Or More Races - Hispanic 50 0.47%
Black or African American Alone - Non Hispanic 40 0.38%
White Alone - Non Hispanic 8,449 80.03%
American Indian and Alaska Native Alone - Non Hispanic 107 1.01%
Asian Alone - Non Hispanic 86 0.82%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 3 0.03%
Two Or More Races - Non Hispanic 202 1.91%