Population By Race and Ethnicity in Washington County, WI in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 136,784 population of Washington County, Wisconsin comprised of 4,618 people who identified as Hispanic (3.38%), and 132,166 people who identified as Non-Hispanic (96.62%).

Race: The White Alone population was the largest racial group in Washington County, Wisconsin with a population of 130,113 (95.12%); Asian Alone population was the second largest racial group with a population of 2,095 (1.53%); and Black or African American Alone was the third largest racial group with a population of 2,024 (1.48%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Washington County, Wisconsin in 2020, with a population of 126,066 (92.16%); the second largest ethnic group was White Alone - Hispanic with a population of 4,047 (2.96%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 2,066 (1.51%).

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

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

See this for other years:
Hispanics and Non Hispanics in Washington County, WI in 2020
Total Population:
Race in Washington County, WI in 2020
Total Population:
Ethnicity in Washington County, WI in 2020
Total Population:
Population By Race in Washington , WI in 2020
Race Population Percentage
Black or African American Alone 2,024 1.48%
White Alone 130,113 95.12%
American Indian and Alaska Native Alone 556 0.41%
Asian Alone 2,095 1.53%
Native Hawaiian And Pacific Islander Alone 49 0.04%
Two Or More Races 1,947 1.42%
Population By Ethnicity in Washington , WI in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 137 0.1%
White Alone - Hispanic 4,047 2.96%
American Indian and Alaska Native Alone - Hispanic 154 0.11%
Asian Alone - Hispanic 29 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 9 0.01%
Two Or More Races - Hispanic 242 0.18%
Black or African American Alone - Non Hispanic 1,887 1.38%
White Alone - Non Hispanic 126,066 92.16%
American Indian and Alaska Native Alone - Non Hispanic 402 0.29%
Asian Alone - Non Hispanic 2,066 1.51%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 40 0.03%
Two Or More Races - Non Hispanic 1,705 1.25%