Lafayette County's estimated 2026 population is 17,800 with a growth rate of 1.41% in the past year according to the most recent United States census data. Lafayette County is the 57th largest county in Wisconsin. The 2010 population was 16,799 and has seen a growth of 5.96% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lafayette County includes 93.39% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
White (93.39%)
Two or more races (4.44%)
Other race (0.73%)
Asian (0.71%)
Black or African American (0.57%)
Native American (0.15%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 15,678 | 93.39% |
| Two or more races | 746 | 4.44% |
| Other race | 122 | 0.73% |
| Asian | 120 | 0.71% |
| Black or African American | 96 | 0.57% |
| Native American | 26 | 0.15% |
Married
Widowed
Divorced
Separated
Never Married
Lafayette County's average per capita income is $47,648. Household income levels show a median of $72,091. The poverty rate stands at 10.7%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,236 | - |
| Families | $86,359 | $100,047 |
| Households | $72,091 | $86,841 |
| Non Families | $40,928 | $56,198 |
Average Income
Median Household Income
Poverty Rate