Nelson County's 2026 population is estimated at 50,156, reflecting a 1.47% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Nelson County is the 21st largest county in Kentucky. The 2010 population was 43,626 and has grown 14.97% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.5 years
Female: 40.9 years
Male: 38.3 years
There are 36,634 adults, (8,291 of whom are seniors) in Nelson County.
Female: 23,807 (50%)
Male: 23,799 (50%)
The racial composition of Nelson County includes 89.78% White, 5.32% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 42,741 | 89.78% |
| Black or African American | 2,535 | 5.32% |
| Two or more races | 1,866 | 3.92% |
| Asian | 236 | 0.5% |
| Other race | 202 | 0.42% |
| Native American | 26 | 0.05% |
Nelson County 's average per capita income is $46,707. Household income levels show a median of $69,562. The poverty rate stands at 10.85%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,370 | - |
| Families | $82,645 | $100,555 |
| Households | $69,562 | $87,639 |
| Non Families | $38,095 | $54,303 |
Average Income
Median Household Income
Poverty Rate