Population By Race and Ethnicity in Waukesha County, WI in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 404,545 population of Waukesha County, Wisconsin comprised of 20,118 people who identified as Hispanic (4.97%), and 384,427 people who identified as Non-Hispanic (95.03%).

Race: The White Alone population was the largest racial group in Waukesha County, Wisconsin with a population of 373,271 (92.27%); Asian Alone population was the second largest racial group with a population of 16,003 (3.96%); and Black or African American Alone was the third largest racial group with a population of 7,153 (1.77%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Waukesha County, Wisconsin in 2019, with a population of 354,979 (87.75%); the second largest ethnic group was White Alone - Hispanic with a population of 18,292 (4.52%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 15,863 (3.92%).

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

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

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Hispanics and Non Hispanics in Waukesha County, WI in 2019
Total Population:
Race in Waukesha County, WI in 2019
Total Population:
Ethnicity in Waukesha County, WI in 2019
Total Population:
Population By Race in Waukesha , WI in 2019
Race Population Percentage
Black or African American Alone 7,153 1.77%
White Alone 373,271 92.27%
American Indian and Alaska Native Alone 1,340 0.33%
Asian Alone 16,003 3.96%
Native Hawaiian And Pacific Islander Alone 220 0.05%
Two Or More Races 6,558 1.62%
Population By Ethnicity in Waukesha , WI in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 481 0.12%
White Alone - Hispanic 18,292 4.52%
American Indian and Alaska Native Alone - Hispanic 404 0.1%
Asian Alone - Hispanic 140 0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic 64 0.02%
Two Or More Races - Hispanic 737 0.18%
Black or African American Alone - Non Hispanic 6,672 1.65%
White Alone - Non Hispanic 354,979 87.75%
American Indian and Alaska Native Alone - Non Hispanic 936 0.23%
Asian Alone - Non Hispanic 15,863 3.92%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 156 0.04%
Two Or More Races - Non Hispanic 5,821 1.44%