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

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 407,496 population of Waukesha County, Wisconsin comprised of 21,946 people who identified as Hispanic (5.39%), and 385,550 people who identified as Non-Hispanic (94.61%).

Race: The White Alone population was the largest racial group in Waukesha County, Wisconsin with a population of 375,239 (92.08%); Asian Alone population was the second largest racial group with a population of 16,503 (4.05%); and Black or African American Alone was the third largest racial group with a population of 7,342 (1.8%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Waukesha County, Wisconsin in 2020, with a population of 355,274 (87.19%); the second largest ethnic group was White Alone - Hispanic with a population of 19,965 (4.9%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 16,349 (4.01%).

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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Waukesha County, WI in 2020

Total Population:407,496

Non Hispanic (94.61%)

Hispanic (5.39%)

Race in Waukesha County, WI in 2020

Total Population:407,496

White Alone (92.08%)

Asian Alone (4.05%)

Black or African American Alone (1.8%)

Two or more races (1.68%)

American Indian and Alaska Native Alone (0.33%)

Native Hawaiian And Pacific Islander Alone (0.06%)

Ethnicity in Waukesha County, WI in 2020

Total Population:407,496

Non-Hispanic White Alone (87.19%)

Hispanic White Alone (4.9%)

Non-Hispanic Asian Alone (4.01%)

Non-Hispanic Black or African American Alone (1.67%)

Non-Hispanic Two or more races (1.48%)

All Other Ethnicities (0.76%)

Population By Race in Waukesha , WI in 2020

Race	Population	Percentage
White Alone	375,239	92.08%
Asian Alone	16,503	4.05%
Black or African American Alone	7,342	1.8%
Two Or More Races	6,825	1.68%
American Indian and Alaska Native Alone	1,352	0.33%
Native Hawaiian And Pacific Islander Alone	235	0.06%

Population By Ethnicity in Waukesha , WI in 2020

Ethnicity	Population	Percentage
White Alone - Non Hispanic	355,274	87.19%
White Alone - Hispanic	19,965	4.9%
Asian Alone - Non Hispanic	16,349	4.01%
Black or African American Alone - Non Hispanic	6,796	1.67%
Two Or More Races - Non Hispanic	6,037	1.48%
American Indian and Alaska Native Alone - Non Hispanic	927	0.23%
Two Or More Races - Hispanic	788	0.19%
Black or African American Alone - Hispanic	546	0.13%
American Indian and Alaska Native Alone - Hispanic	425	0.1%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	167	0.04%
Asian Alone - Hispanic	154	0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic	68	0.02%