Lafayette County's 2026 population is estimated at 34,045, reflecting a 0.79% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Lafayette County is the 35th largest county in Missouri. The 2010 population was 33,380 and has grown 1.99% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.9 years
Female: 42.1 years
Male: 40 years
There are 25,508 adults, (6,393 of whom are seniors) in Lafayette County.
Female: 16,519 (49.9%)
Male: 16,596 (50.1%)
The racial composition of Lafayette County includes 90.79% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 30,066 | 90.79% |
| Two or more races | 1,826 | 5.51% |
| Black or African American | 514 | 1.55% |
| Other race | 506 | 1.53% |
| Asian | 123 | 0.37% |
| Native American | 80 | 0.24% |
Lafayette County 's average per capita income is $48,497. Household income levels show a median of $80,612. The poverty rate stands at 9.29%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,683 | - |
| Families | $100,200 | $109,526 |
| Households | $80,612 | $93,896 |
| Non Families | $44,094 | $55,609 |
Average Income
Median Household Income
Poverty Rate
