Johnson County's estimated 2025 population is 21,878 with a growth rate of -0.54% in the past year according to the most recent United States census data. Johnson County is the 53rd largest county in Kentucky. The 2010 population was 23,398 and has seen a growth of -6.5% since that time.
Data after 2023 is projected based on recent change
The racial composition of Johnson County includes 95.37% White, and smaller percentages for Two or more races, Asian, Black or African American, Native American, other race, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 21,423 | 95.37% |
| Two or more races | 607 | 2.7% |
| Asian | 251 | 1.12% |
| Black or African American | 126 | 0.56% |
| Native American | 26 | 0.12% |
| Other race | 23 | 0.1% |
| Native Hawaiian or Pacific Islander | 8 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
Johnson County's average per capita income is $34,773. Household income levels show a median of $43,014. The poverty rate stands at 23.37%.
Name | Median | Mean |
|---|---|---|
| Married Families | $62,445 | - |
| Families | $58,065 | $73,306 |
| Households | $43,014 | $60,016 |
| Non Families | $18,552 | $26,322 |
Average Income
Median Household Income
Poverty Rate