Sussex is a village located in Waukesha County, Wisconsin. Sussex has a 2025 population of 12,850 . Sussex is currently growing at a rate of 1.93% annually and its population has increased by 10.47% since the most recent census, which recorded a population of 11,632 in 2020.
The average household income in Sussex is $134,806 with a poverty rate of 5.58%. The median age in Sussex is 38.9 years: 39.4 years for males, and 38.6 years for females. For every 100 females there are 95.0 males.
Data after 2023 is projected based on recent change
The racial composition of Sussex includes 87.32% White, 8.01% Asian, and smaller percentages for Two or more races, Black or African American, other race, Native American and multiracial populations.
White (87.32%)
Asian (8.01%)
Two or more races (2.93%)
Black or African American (1.36%)
Other race (0.36%)
Native American (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 10,299 | 87.32% |
| Asian | 945 | 8.01% |
| Two or more races | 346 | 2.93% |
| Black or African American | 160 | 1.36% |
| Other race | 42 | 0.36% |
| Native American | 3 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Sussex's average per capita income is $66,290. Household income levels show a median of $112,031. The poverty rate stands at 5.58%.
Name | Median | Mean |
|---|---|---|
| Married Families | $148,534 | - |
| Families | $133,750 | $166,003 |
| Households | $112,031 | $134,806 |
| Non Families | $54,848 | $72,724 |
Average Income
Median Household Income
Poverty Rate