Johnson County, Tennessee Demographics 2026

Demographic data: ACS 2020–2024 five-year estimates. Sources and methodology

Johnson County, Tennessee has a population of 18,196, the 70th most populous county in Tennessee. The median household income is $53,129 and the median home value is $178,600. The poverty rate is 21.4%.

Johnson County Quick Facts

Population 18,196

Median Household Income $53,12990% MOE ±$4,322

Median Home Value $178,60090% MOE ±$19,569

Poverty Rate 21.4%90% MOE ±4.5 pts

Unemployment Rate 3.2%90% MOE ±1.4 pts

Median Age 46.7 years90% MOE ±0.7 years

Homeownership Rate 77.5%90% MOE ±3.3 pts

Affordability Ratio 3.4x

Bachelor's Degree+ 17.5%90% MOE ±2.9 pts

Adults 25+ with high school education or higher 82.1%

Cities/Places 1

Population 18,196 70th of 95

Median Income $53,129 24% lower than state

Poverty Rate 21.4%

Unemployment 3.2%

How Johnson County Changed

Change from the non-overlapping 2015–2019 ACS period to 2020–2024. Earlier dollar figures are adjusted to 2024 dollars; changes marked “no clear change” are within the combined 90% margins of error.

Metric	2015–2019	2020–2024	Change
Population	17,753	18,196	+2.5%
Median household income	$44,310	$53,129	+19.9%
Median home value¹	$163,807	$178,600	No clear change (+9.0%)
Median gross rent	$671	$674	No clear change (+0.5%)

¹ The Census Bureau changed its home-value inflation adjustment beginning with the 2022 ACS; interpret that comparison with additional caution.

Median Household Income

Johnson

$53,129

$69,595

National

$80,734

Median Home Value

Johnson

$178,600

$286,700

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 21.4%

$25K-$50K 25.7%

$50K-$100K 31.4%

$100K+ 21.6%

Detailed income brackets

Under $10K

6.7%

$10K-$15K

6.4%

$15K-$20K

3.5%

$20K-$25K

4.8%

$25K-$30K

5.1%

$30K-$35K

5.8%

$35K-$40K

6.1%

$40K-$45K

3.3%

$45K-$50K

5.3%

$50K-$60K

8.1%

$60K-$75K

9.7%

$75K-$100K

13.5%

$100K-$125K

9.0%

$125K-$150K

4.5%

$150K-$200K

4.9%

$200K+

3.2%

Employment

3.2% Unemployment Rate State: 4.7%|National: 5.2%

44.6% Labor Force Participation

Housing Overview

Owner 77.5%

Renter 22.5%

Affordability Index Affordable

3.4x home value to income ratio

Median gross rent $674/mo 15.2% of median household income annually

People & Demographics

Age Distribution

Under 18

16.7%

18-34

19.2%

35-54

25.7%

55-74

28.7%

75+

9.8%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 46 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Johnson County

City	Population	Median Income	Poverty	Home Value
Mountain City	2,542	$38,818	34.1%	$216,300

Explore Tennessee Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Johnson County is located in Tennessee with a total population of 18,196. It is the 70th most populous county out of 95 in Tennessee. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Johnson County is 46.7 years. This is 20% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Johnson County is $53,129. This is 24% lower than the state median of $69,595. It is also 34% lower than the national median of $80,734. The poverty rate stands at 21.4%. This is 56% 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 3.2%. This is 32% lower than the state rate of 4.7%. The median home value is $178,600. Housing costs are 38% lower than the state median of $286,700. The home-value-to-income ratio is 3.4x. 77.5% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 66.9%.

Race & Ethnicity

Johnson County has a predominantly White (non-Hispanic) population, comprising 87.3% of all residents. Black or African American residents account for 4.7%. The Black or African American population (4.7%) is well below the state average of 15.4%. The Hispanic or Latino population (3.3%) is well below the state average of 7.4%. The Asian population (0.3%) is well below the state average of 1.9%.

Education

17.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 44% lower than the state rate of 31.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.1%.

Data Sources & Methodology

All figures for Johnson County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Tennessee and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Johnson County, Tennessee?

Johnson County has a population of 18,196, making it the 70th most populous county in Tennessee.

What is the median income in Johnson County?

The median household income in Johnson County is $53,129 with a poverty rate of 21.4%.

How many cities are in Johnson County, Tennessee?

Johnson County contains 1 Census-designated place.