Knox is located in Jefferson County, Ohio. Knox has a 2025 population of 4,212. Knox is currently declining at a rate of -0.26% annually and its population has decreased by -2.27% since the most recent census, which recorded a population of 4,310 in 2020.
The average household income in Knox is $62,926 with a poverty rate of 19.01%. The median age in Knox is 48 years: 45.5 years for males, and 50.8 years for females.
Data after 2023 is projected based on recent change
The racial composition of Knox includes 92.84% White, and smaller percentages for Black or African American, other race and multiracial populations.
White (92.8%)
Two or more races (3.9%)
Black or African American (2.1%)
Other race (1.2%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,982 | 92.84% |
| Two or more races | 165 | 3.85% |
| Black or African American | 92 | 2.15% |
| Other race | 50 | 1.17% |
Married
Widowed
Divorced
Separated
Never Married
Knox's average per capita income is $37,909. Household income levels show a median of $47,346. The poverty rate stands at 19.01%.
Name | Median | Mean |
|---|---|---|
| Married Families | $79,000 | - |
| Families | $66,444 | $84,444 |
| Households | $47,346 | $62,926 |
| Non Families | $21,213 | $37,234 |
Average Income
Median Household Income
Poverty Rate