Waukesha County's estimated 2026 population is 423,061 with a growth rate of 0.72% in the past year according to the most recent United States census data. Waukesha County is the 3rd largest county in Wisconsin. The 2010 population was 390,051 and has seen a growth of 8.46% since that time.
Data after 2023 is projected based on recent change
The racial composition of Waukesha County includes 87.87% White, 3.85% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (87.87%)
Two or more races (5.15%)
Asian (3.85%)
Black or African American (1.54%)
Other race (1.39%)
Native American (0.19%)
Native Hawaiian or Pacific Islander (0.01%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 359,428 | 87.87% |
| Two or more races | 21,082 | 5.15% |
| Asian | 15,732 | 3.85% |
| Black or African American | 6,307 | 1.54% |
| Other race | 5,675 | 1.39% |
| Native American | 762 | 0.19% |
| Native Hawaiian or Pacific Islander | 54 | 0.01% |
Married
Widowed
Divorced
Separated
Never Married
Waukesha County's average per capita income is $65,598. Household income levels show a median of $104,100. The poverty rate stands at 5.21%.
Name | Median | Mean |
|---|---|---|
| Married Families | $141,069 | $176,445 |
| Families | $130,330 | $163,685 |
| Households | $104,100 | $136,213 |
| Non Families | $55,900 | $74,572 |
Average Income
Median Household Income
Poverty Rate
