Lafayette County's estimated 2026 population is 17,609 with a growth rate of 0.75% 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 4.82% since that time.
Data after 2023 is projected based on recent change
Overall: 40.8 years
Female: 41.5 years
Male: 40.1 years
There are 12,661 adults, (3,450 of whom are seniors) in Lafayette County.
Female: 8,322 (49.1%)
Male: 8,620 (50.9%)
The racial composition of Lafayette County includes 91.03% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 15,422 | 91.03% |
| Two or more races | 970 | 5.73% |
| Other race | 345 | 2.04% |
| Asian | 123 | 0.73% |
| Black or African American | 62 | 0.37% |
| Native American | 20 | 0.12% |
Lafayette County's average per capita income is $50,738. Household income levels show a median of $76,462. The poverty rate stands at 11.89%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,345 | $116,870 |
| Families | $91,810 | $106,456 |
| Households | $76,462 | $92,228 |
| Non Families | $42,157 | $59,873 |
Average Income
Median Household Income
Poverty Rate