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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Waukesha County, WI in 2015

Total Population:396,377

Non Hispanic (95.4%)

Hispanic (4.6%)

Race in Waukesha County, WI in 2015

Total Population:396,377

White Alone (93.36%)

Asian Alone (3.44%)

Black or African American Alone (1.46%)

Two or more races (1.39%)

American Indian and Alaska Native Alone (0.3%)

Native Hawaiian And Pacific Islander Alone (0.05%)

Ethnicity in Waukesha County, WI in 2015

Total Population:396,377

Non-Hispanic White Alone (89.12%)

Hispanic White Alone (4.24%)

Non-Hispanic Asian Alone (3.41%)

Non-Hispanic Black or African American Alone (1.38%)

Non-Hispanic Two or more races (1.24%)

All Other Ethnicities (0.61%)

Population By Race in Waukesha , WI in 2015

Race	Population	Percentage
White Alone	370,060	93.36%
Asian Alone	13,643	3.44%
Black or African American Alone	5,781	1.46%
Two Or More Races	5,494	1.39%
American Indian and Alaska Native Alone	1,187	0.3%
Native Hawaiian And Pacific Islander Alone	212	0.05%

Population By Ethnicity in Waukesha , WI in 2015

Ethnicity	Population	Percentage
White Alone - Non Hispanic	353,257	89.12%
White Alone - Hispanic	16,803	4.24%
Asian Alone - Non Hispanic	13,521	3.41%
Black or African American Alone - Non Hispanic	5,457	1.38%
Two Or More Races - Non Hispanic	4,913	1.24%
American Indian and Alaska Native Alone - Non Hispanic	864	0.22%
Two Or More Races - Hispanic	581	0.15%
Black or African American Alone - Hispanic	324	0.08%
American Indian and Alaska Native Alone - Hispanic	323	0.08%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	146	0.04%
Asian Alone - Hispanic	122	0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic	66	0.02%