Johnson County, Tennessee Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Johnson County, TN Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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C
Health Below averageLess healthy than 85% of counties in Tennessee
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D
Income Well below averageAmong the 5 least wealthy counties in Tennessee
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F
Education Well below averageLess educated than 80% of counties in Tennessee
Source: Map AI Methodology
Population: density and quick facts
| Metric | Johnson County | Tennessee Avg | U.S. Average |
|---|---|---|---|
| Population | 18,196 | 7,058,506 | 337,468,954 |
| Population density (per sq mi) | 60.2 | 167.5 | 86.4 |
| Population growth (%/yr) | 0.19% | 0.94% | 0.59% |
| Median age | 47.5 | 37.3 | 37.3 |
| Households | 7,295 | 2,819,839 | 130,235,071 |
Population in Johnson County grew by 1.0% from 2009 to 2024, reaching 18,196 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Johnson County is Gen X, aged 45–60, at 23.9% of residents. That is 3.7 points above Tennessee as a whole.
- Gen Z 13–28 3,048 16.8% -4.6 pts
- Millennials 29–44 3,778 20.8% -0.8 pts
- Gen X 45–60 4,357 23.9% +3.7 pts
- Boomers 61–79 3,980 21.9% +4.6 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Tennessee, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 46.5% of the people living in Johnson County and men 53.5%.
- Women 46.5% Tennessee 50.9%
- Men 53.5% Tennessee 49.1%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Johnson County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Johnson County has a the economy index of D, which means it is barely prosperous.
| Metric | Johnson County | Tennessee Avg | U.S. Average |
|---|---|---|---|
| Median household income | $53,642 | $69,901 | $80,455 |
| Income growth (%/yr) | 7.55% | 5.19% | 4.80% |
| Unemployment rate | 3.2% | 4.6% | 5.2% |
The median household income in Johnson County is about 23% lower than in Tennessee.
Housing
| Metric | Johnson County | Tennessee Avg | U.S. Average |
|---|---|---|---|
| Median home price | $211,111 | $255,786 | $248,835 |
| Median rent | $674 | $1,188 | $1,407 |
| Homeownership rate | 77.5% | 66.9% | 65.2% |
The median home price in Johnson County is about 26.1 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $674 per month for that long.
Commute Time & Mobility
Commuters in Johnson County spend about 37 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 153 hours, about 6.4 full days, spent commuting.
| Metric | Johnson County | Tennessee Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 18.4 | 22.4 | 22.4 |
| Round-trip commute (min) | 36.8 | 44.8 | 44.8 |
| Yearly time spent (hours) | 153 | 187 | 187 |
| Estimated yearly cost | $4,757 | $5,785 | $5,790 |
| Work from home | 9.7% | 12.9% | 15.0% |
| Highway traffic (vehicles/day) | 1,342 | 9,259 | 8,813 |
| Local road traffic (vehicles/day) | 566 | 1,225 | 1,355 |
Fastest commutes among counties in
Tennessee:
Dyer County (15.9 min), Henry County (16.7 min), Obion County (17.1 min).
Slowest:
Cannon County (33.3 min), Union County (33.2 min), Fayette County (33.1 min).
The average commute time in Johnson County is 18 minutes, shorter than the 22 minutes in Tennessee.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Johnson County has a education index of F, which means it scores poorly in education.
| Metric | Johnson County | Tennessee Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 13.7% | 27.5% | 31.6% |
| Average household size | 2.27 | 2.45 | 2.53 |
Highest education index among counties in
Tennessee:
Williamson County (0.4), Davidson County (0.3), Knox County (0.3).
Lowest:
Lake County (0.1), Van Buren County (0.1), Lauderdale County (0.1).
Health
Johnson County has a health index of C, which means it is somewhat healthy.
| Metric | Johnson County | Tennessee Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 73.7 | 74.8 | 78.3 |
| Self-rated poor health | 21.7% | 19.5% | 16.3% |
| Smokers | 27.0% | 25.1% | 19.0% |
Highest health index among counties in
Tennessee:
Williamson County (0.8), Rutherford County (0.8), Wilson County (0.8).
Lowest:
Clay County (0.8), Lake County (0.8), Hancock County (0.8).
Johnson County, TN Compared With Nearby Counties
Johnson County, TN is the smallest of the 5 counties compared here, 18,196 residents against a local median of 54,508. Nothing separates Johnson County, TN sharply from the counties around it. Each measure below lands within 15% of the local median, close enough that the differences are within what survey sampling alone would produce.
The largest of those small differences is commute, 13% below the local median at 18.4 min against 21.2 min. Johnson County, TN has the 2nd lowest commute of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Johnson County, TN | 18,196 | $53,642 #3/5 | $211,111 #3/5 | 18.4 min #2/5 |
| Watauga County, NC | 55,114 | $52,022 | $376,675 | 17.2 min |
| Washington County, VA | 53,901 | $64,315 | $174,865 | 20.7 min |
| Carter County, TN | 56,703 | $50,141 | $144,997 | 21.8 min |
| Ashe County, NC | 26,946 | $57,366 | $251,500 | 21.6 min |
Frequently Asked Questions
Common questions about Johnson County, Tennessee.
How many people live in Johnson County, Tennessee?
About 18,196 people live in Johnson County, Tennessee, in 7,295 households of 2.3 people on average. The median age is 47.5, so residents are older than the U.S. median of 37.3 by about 10 years.
Is Johnson County, Tennessee urban or rural?
Averaged over its land area, Johnson County, Tennessee has 60 people per square mile, a density typical of rural areas. That is close to the U.S. average of 86.
Is Johnson County, Tennessee an affordable place to live?
The median home costs 3.9 times the median household income ($211,111 against $53,642), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $674 a month takes about 15% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Johnson County, Tennessee?
Unemployment in Johnson County, Tennessee is only 3.2%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How educated are people in Johnson County, Tennessee?
13.7% of adults in Johnson County, Tennessee hold a bachelor's degree or higher (about 1 in 7), well below the U.S. share of 31.6%.
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