Knox County's 2026 population is estimated at 64,856, reflecting a 0.78% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Knox County is the 38th largest county in Ohio. The 2010 population was 61,087 and has grown 6.17% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.4 years
Female: 40.4 years
Male: 38.5 years
There are 48,756 adults, (12,126 of whom are seniors) in Knox County.
Female: 31,943 (50.6%)
Male: 31,199 (49.4%)
The racial composition of Knox County includes 93.61% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 59,106 | 93.61% |
| Two or more races | 2,228 | 3.53% |
| Other race | 686 | 1.09% |
| Black or African American | 606 | 0.96% |
| Asian | 506 | 0.8% |
| Native American | 9 | 0.01% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Knox County 's average per capita income is $50,196. Household income levels show a median of $73,878. The poverty rate stands at 11.64%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $102,049 | - |
| Families | $90,116 | $105,643 |
| Households | $73,878 | $92,322 |
| Non Families | $42,988 | $62,441 |
Average Income
Median Household Income
Poverty Rate