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.
White
Two or more races
Asian
Black or African American
Native American
Other race
Native Hawaiian or Pacific Islander
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