Lannon is a village located in Waukesha County, Wisconsin. Lannon has a 2025 population of 2,205 . Lannon is currently growing at a rate of 7.67% annually and its population has increased by 55.39% since the most recent census, which recorded a population of 1,419 in 2020.
The average household income in Lannon is $117,514 with a poverty rate of 5.9%. The median age in Lannon is 41.9 years: 42.5 years for males, and 39.4 years for females. For every 100 females there are 130.1 males.
Data after 2023 is projected based on recent change
The racial composition of Lannon includes 89.63% White, 5.56% Asian, 4.14% other race, and smaller percentages for Two or more races, Native American and multiracial populations.
White (89.63%)
Asian (5.56%)
Other race (4.14%)
Two or more races (0.54%)
Native American (0.14%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,322 | 89.63% |
| Asian | 82 | 5.56% |
| Other race | 61 | 4.14% |
| Two or more races | 8 | 0.54% |
| Native American | 2 | 0.14% |
Married
Widowed
Divorced
Separated
Never Married
Lannon's average per capita income is $60,000. Household income levels show a median of $79,191. The poverty rate stands at 5.9%.
Name | Median | Mean |
|---|---|---|
| Married Families | $162,250 | - |
| Families | $155,714 | $168,955 |
| Households | $79,191 | $117,514 |
| Non Families | - | $70,447 |
Average Income
Median Household Income
Poverty Rate