Population By Race and Ethnicity in Waukesha County, WI in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 396,377 population of Waukesha County, Wisconsin comprised of 18,219 people who identified as Hispanic (4.6%), and 378,158 people who identified as Non-Hispanic (95.4%).

Race: The White Alone population was the largest racial group in Waukesha County, Wisconsin with a population of 370,060 (93.36%); Asian Alone population was the second largest racial group with a population of 13,643 (3.44%); and Black or African American Alone was the third largest racial group with a population of 5,781 (1.46%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Waukesha County, Wisconsin in 2015, with a population of 353,257 (89.12%); the second largest ethnic group was White Alone - Hispanic with a population of 16,803 (4.24%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 13,521 (3.41%).

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 2015
Total Population:
Race in Waukesha County, WI in 2015
Total Population:
Ethnicity in Waukesha County, WI in 2015
Total Population:
Population By Race in Waukesha , WI in 2015
Race Population Percentage
Black or African American Alone 5,781 1.46%
White Alone 370,060 93.36%
American Indian and Alaska Native Alone 1,187 0.3%
Asian Alone 13,643 3.44%
Native Hawaiian And Pacific Islander Alone 212 0.05%
Two Or More Races 5,494 1.39%
Population By Ethnicity in Waukesha , WI in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 324 0.08%
White Alone - Hispanic 16,803 4.24%
American Indian and Alaska Native Alone - Hispanic 323 0.08%
Asian Alone - Hispanic 122 0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic 66 0.02%
Two Or More Races - Hispanic 581 0.15%
Black or African American Alone - Non Hispanic 5,457 1.38%
White Alone - Non Hispanic 353,257 89.12%
American Indian and Alaska Native Alone - Non Hispanic 864 0.22%
Asian Alone - Non Hispanic 13,521 3.41%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 146 0.04%
Two Or More Races - Non Hispanic 4,913 1.24%