Johnson County, Kentucky Demographics 2026

Population Overview

Johnson County is located in Kentucky with a total population of 22,464. It is the 52nd most populous county out of 120 in Kentucky.

Age Demographics

The median age in Johnson County is 42.0 years. This is 7% higher than the state median of 39.1 years.

Economy, Income & Housing

The median household income in Johnson County is $43,014. This is 31% lower than the state median of $62,417. Compared to the national median of $78,538, household income here is 45% lower. The poverty rate stands at 23.4%. This is 45% higher than the state poverty rate of 16.1%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 4.7%. This is 2% lower than the state rate of 4.8%. The median home value is $125,300. Housing costs are 35% lower than the state median of $192,300. With a home-value-to-income ratio of just 2.9x, Johnson County is one of the most affordable housing markets in the area. 66.4% of occupied housing units are owner-occupied. This homeownership rate is 3% lower than the state average of 68.3%.

Race & Ethnicity

Johnson County has a predominantly White (non-Hispanic) population, comprising 95.3% of all residents. Asian residents account for 1.1%. The Black or African American population (0.6%) is well below the state average of 7.8%. The Hispanic or Latino population (0.5%) is well below the state average of 4.7%.

Education

16.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% lower than the state rate of 27.0%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.3%.