Washington County, Wisconsin 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 136.76K population of Washington County, WI residents comprised of 4.83K residents who identified as Hispanic or Latino (3.53%), and 131.93K residents who identified as Non-Hispanic (96.47%).

Race: The White Alone population was the largest racial group in Washington County, WI, with a population of 125.35K (91.66%). The Two Or More Races population was the second largest racial group in Washington County, WI, with a population of 5.79K (4.24%). The Asian Alone population was the third largest racial group in Washington County, WI, with a population of 1.95K (1.43%). The smallest racial group in Washington County, WI was Native Hawaiian And Pacific Islander Alone with a population of 30 (0.02%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Washington County, WI, with a population of 123.86K (90.56%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Washington County, WI, with a population of 3.76K (2.75%). The Hispanic - Two or More Races population was the third largest ethnic group in Washington County, WI, with a population of 2.04K (1.49%). The smallest ethnic group in Washington County, WI was Hispanic - Native Hawaiian & Pac. Islander with a population of 2 (0.00%).

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

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

Washington County, WI Hispanics and Non Hispanics Population in Census 2020
Total Population:
Washington County, WI Racial Groups in Census 2020
Total Population:
Washington County, WI Ethnicity Groups in Census 2020
Total Population:
Washington County, WI Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 1753 1.28
White Alone 125351 91.66
American Indian and Alaska Native Alone 371 0.27
Asian Alone 1951 1.43
Native Hawaiian And Pacific Islander Alone 30 0.02
Some Other Race Alone 1511 1.11
Two Or More Races 5794 4.24
Washington County, WI Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 123855 90.56
Non-Hispanic - Two or More Races 3757 2.75
Hispanic - Two or More Races 2037 1.49
Non-Hispanic - Asian Alone 1943 1.42
Non-Hispanic - Black Alone 1672 1.22
Hispanic - White Alone 1496 1.09
Hispanic - Some Other Race Alone 1104 0.81
Non-Hispanic - Some Other Race Alone 407 0.30
Non-Hispanic - American Indian & Alaska Native 272 0.20
Hispanic - American Indian & Alaska Native 99 0.07
Hispanic - Black Alone 81 0.06
Non-Hispanic - Native Hawaiian & Pac. Islander 28 0.02
Hispanic - Asian Alone 8 0.01
Hispanic - Native Hawaiian & Pac. Islander 2 0.00