Population By Race and Ethnicity in Washington, ID in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the 10,900 population of Washington County, Idaho comprised of 1,741 people who identified as Hispanic (15.97%), and 9,159 people who identified as Non-Hispanic (84.03%).

Race: The White Alone population was the largest racial group in Washington County, Idaho with a population of 10,270 (94.22%); Two Or More Races population was the second largest racial group with a population of 256 (2.35%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 177 (1.62%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Washington County, Idaho in 2021, with a population of 8,711 (79.92%); the second largest ethnic group was White Alone - Hispanic with a population of 1,559 (14.3%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 205 (1.88%).

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 2021
Total Population:
Race in Washington, ID in 2021
Total Population:
Ethnicity in Washington, ID in 2021
Total Population:
Population By Race in Washington , ID in 2021
Race Population Percentage
Black or African American Alone 74 0.68%
White Alone 10,270 94.22%
American Indian and Alaska Native Alone 177 1.62%
Asian Alone 107 0.98%
Native Hawaiian And Pacific Islander Alone 16 0.15%
Two Or More Races 256 2.35%
Population By Ethnicity in Washington , ID in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 26 0.24%
White Alone - Hispanic 1,559 14.3%
American Indian and Alaska Native Alone - Hispanic 71 0.65%
Asian Alone - Hispanic 21 0.19%
Native Hawaiian And Pacific Islander Alone - Hispanic 13 0.12%
Two Or More Races - Hispanic 51 0.47%
Black or African American Alone - Non Hispanic 48 0.44%
White Alone - Non Hispanic 8,711 79.92%
American Indian and Alaska Native Alone - Non Hispanic 106 0.97%
Asian Alone - Non Hispanic 86 0.79%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 3 0.03%
Two Or More Races - Non Hispanic 205 1.88%