Johnson County, Tennessee Demographics 2026

Population Overview

Johnson County is located in Tennessee with a total population of 18,073. It is the 70th most populous county out of 95 in Tennessee.

Age Demographics

The median age in Johnson County is 46.4 years. This is 19% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Johnson County is $52,152. This is 22% lower than the state median of $67,097. Compared to the national median of $78,538, household income here is 34% lower. The poverty rate stands at 22.1%. This is 60% higher than the state poverty rate of 13.8%. 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 3.7%. This is 22% lower than the state rate of 4.7%. The median home value is $175,500. Housing costs are 32% lower than the state median of $256,800. The home-value-to-income ratio is 3.4x. 78.6% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 67.0%.

Race & Ethnicity

Johnson County has a predominantly White (non-Hispanic) population, comprising 88.0% of all residents. Black or African American residents account for 3.7%. The Black or African American population (3.7%) is well below the state average of 15.7%. The Hispanic or Latino population (3.0%) is well below the state average of 7.1%. The Asian population (0.2%) is well below the state average of 1.8%.

Education

15.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 48% lower than the state rate of 30.4%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 81.3%.