Jefferson County's estimated 2026 population is 814,881 with a growth rate of 1.31% in the past year according to the most recent United States census data. Jefferson County is the largest county in Kentucky. The 2010 population was 742,096 and has seen a growth of 9.81% since that time.
Data after 2023 is projected based on recent change
The racial composition of Jefferson County includes 65.33% White, 21.96% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (65.33%)
Black or African American (21.96%)
Two or more races (7.82%)
Asian (2.91%)
Other race (1.85%)
Native American (0.09%)
Native Hawaiian or Pacific Islander (0.04%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 507,893 | 65.33% |
| Black or African American | 170,727 | 21.96% |
| Two or more races | 60,763 | 7.82% |
| Asian | 22,626 | 2.91% |
| Other race | 14,357 | 1.85% |
| Native American | 704 | 0.09% |
| Native Hawaiian or Pacific Islander | 322 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
Jefferson County's average per capita income is $47,895. Household income levels show a median of $67,849. The poverty rate stands at 14.53%.
Name | Median | Mean |
|---|---|---|
| Married Families | $112,326 | $143,834 |
| Families | $88,392 | $118,099 |
| Households | $67,849 | $95,889 |
| Non Families | $44,504 | $61,462 |
Average Income
Median Household Income
Poverty Rate