Knox County's estimated 2026 population is 515,309 with a growth rate of 0.75% in the past year according to the most recent United States census data. Knox County is the 3rd largest county in Tennessee. The 2010 population was 432,952 and has seen a growth of 19.02% since that time.
Data after 2023 is projected based on recent change
Overall: 37.4 years
Female: 38.6 years
Male: 36.1 years
There are 390,630 adults, (80,392 of whom are seniors) in Knox County.
Female: 252,122 (51%)
Male: 242,026 (49%)
The racial composition of Knox County includes 80.06% White, 8.06% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 395,602 | 80.06% |
| Black or African American | 39,839 | 8.06% |
| Two or more races | 36,157 | 7.32% |
| Asian | 11,422 | 2.31% |
| Other race | 9,973 | 2.02% |
| Native American | 747 | 0.15% |
| Native Hawaiian or Pacific Islander | 408 | 0.08% |
Knox County's average per capita income is $50,545. Household income levels show a median of $74,222. The poverty rate stands at 12.2%.
Name | Median | Mean |
|---|---|---|
| Married Families | $116,663 | $151,094 |
| Families | $98,977 | $131,047 |
| Households | $74,222 | $104,460 |
| Non Families | $43,410 | $60,944 |
Average Income
Median Household Income
Poverty Rate
