Health Profile of Johnson County, Tennessee
Johnson County Health Score
The Map AI Health Index is a score that reflects local life expectancy, disease rates, healthcare access, and physical environment to help you quickly compare the overall health and well-being of different areas.
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C
Johnson County Below averageLess healthy than 85% of counties in Tennessee
Source: Map AI Methodology
General Health Overview
| Metric | Johnson County | Tennessee Avg | US Average |
|---|---|---|---|
| Life Expectancy (years) | 73.7 | 74.8 | 78.3 |
| Uninsured Population (%) | 13.4% | 10.0% | 8.4% |
| Self-Rated Poor Health | 21.7% | 19.5% | 16.3% |
Life expectancy in Johnson County is 73.7 years, about 1.1 years shorter than the Tennessee average of 74.8 years. The uninsured rate is 13.4%, higher than the Tennessee average of 10.0%. Self-rated poor health is reported by 21.7% of residents, higher than the Tennessee average of 19.5%.
Population by Age
Older residents
7,990 residents in Johnson County are age 50 or older.
- 85+ 389 160 men · 228 women
- 75–84 1,156 493 men · 663 women
- 65–74 2,376 1,156 men · 1,221 women
- 50–64 4,069 2,053 men · 2,016 women
Younger residents
2,896 residents in Johnson County are age 17 or younger.
- 12–17 971 502 boys · 469 girls
- 7–12 863 440 boys · 424 girls
- 3–7 612 321 boys · 290 girls
- 0–3 449 235 boys · 214 girls
About 1,823 residents in Johnson County (10.0% of the population) are older than the area's life expectancy of 73.7 years.
The highlighted slice of the age axis is the share of residents older than the life-expectancy mark.
Disease Prevalence
| Disease / Condition | Johnson County | Tennessee Avg | US Average |
|---|---|---|---|
| Diabetes | 14.8% | 13.6% | 11.3% |
| Cancer | 7.5% | 7.0% | 6.9% |
| Heart Diseases | 9.4% | 8.1% | 7.1% |
| Adult Obesity | 37.8% | 37.9% | 34.3% |
The rate of heart disease in Johnson County is about 16% higher than in Tennessee.
Health Behaviors
| Behavior | Johnson County | Tennessee Avg | US Average |
|---|---|---|---|
| Smokers | 27.0% | 25.1% | 19.0% |
| Binge Drinking | 13.5% | 13.8% | 16.5% |
| Sedentary Lifestyle | 30.0% | 28.4% | 25.1% |
On average, health behaviors in Johnson County are about the same as in Tennessee.
Assuming each smoker smokes 10 cigarettes a day, that's about 41,000 cigarettes a day, 1.2 million a month, or 15.0 million a year! At 11 minutes* of life lost per cigarette, that's about 450,999 minutes a day and 164.6 million a year lost to smoking overall - and since life expectancy in Johnson County is 73.7 years, that's roughly equivalent to 0.01 lifetimes a day, or 4.25 lifetimes a year.
* Source: Shaw M, Mitchell R, Dorling D. "Time for a smoke? One cigarette reduces your life by 11 minutes." BMJ. 2000;320:53.
Illustrative only. This is not an estimate of how many people actually die from smoking each day or year - it's a rough, order-of-magnitude comparison meant to help grasp the scale of smoking in this area. We take no responsibility for any decisions made based on this figure.
Air Quality
| Metric | Johnson County | Tennessee Avg | US Average |
|---|---|---|---|
| Air Pollution (μg/m³) | 5.30 | 6.39 | 6.09 |
With an annual average of 5.3 µg/m³ of fine particulate matter (PM2.5), air quality in Johnson County is good — generally safe air quality for the vast majority of residents.
Johnson County, TN Health 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. Where Johnson County, TN breaks from the counties next to it is uninsured, sitting 40% above the local median of 9.6% at 13.4%. That is the weaker end of the local range on this measure.
The counties themselves spread 5.0% on uninsured, so Johnson County, TN sits at one end of an already wide local range rather than apart from it. Johnson County, TN has the 5th lowest uninsured of the 5 areas compared here.
| Area | Population | Life expectancy | Uninsured | Obesity |
|---|---|---|---|---|
| Johnson County, TN | 18,196 | 73.7 yrs #5/5 | 13.4% #5/5 | 37.8% #4/5 |
| Watauga County, NC | 55,114 | 80.3 yrs | 9.3% | 28.3% |
| Washington County, VA | 53,901 | 77.0 yrs | 6.7% | 33.1% |
| Carter County, TN | 56,703 | 75.0 yrs | 11.7% | 39.3% |
| Ashe County, NC | 26,946 | 77.5 yrs | 9.8% | 34.3% |
Conclusion
Considering all these factors, Johnson County, Tennessee has an overall health index grade of C, making it about on par with Tennessee, and about on par with the country as a whole.
Frequently Asked Questions
Common questions about health in Johnson County, Tennessee.
Is Johnson County, Tennessee a healthy place to live?
Johnson County, Tennessee has a Map AI Health Index grade of C, based on life expectancy, disease rates, healthcare access, and the physical environment; a C grade means residents are close to the U.S. average.
Is Johnson County, Tennessee one of the healthiest counties in Tennessee?
Johnson County ranks 81st healthiest out of 95 counties in Tennessee by the Map AI Health Index, which measures life expectancy, disease rates, healthcare access, and the physical environment.
What is the life expectancy in Johnson County, Tennessee?
People in Johnson County, Tennessee can expect to live 73.7 years on average, 1.1 years shorter than the Tennessee average of 74.8.
What is the uninsured rate in Johnson County, Tennessee?
13.4% of residents in Johnson County, Tennessee have no health insurance, about 1 in 7 people, 3.4 points above the Tennessee rate of 10.0%.
What percentage of Johnson County, Tennessee residents are obese?
37.8% of adults in Johnson County, Tennessee are classified as obese, about 1 in 3, about the same as the Tennessee rate of 37.9%.
How many cigarettes do smokers in Johnson County, Tennessee go through, and how much life does that cost?
Assuming each smoker smokes 10 cigarettes a day, that's about 41,000 cigarettes a day, 1.2 million a month, or 15.0 million a year! At 11 minutes* of life lost per cigarette, that's about 450,999 minutes a day and 164.6 million a year lost to smoking overall - and since life expectancy in Johnson County is 73.7 years, that's roughly equivalent to 0.01 lifetimes a day, or 4.25 lifetimes a year.
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