Health Profile of Johnson County, Kansas
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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A
Johnson County Above averageHealthiest county in Kansas
Source: Map AI Methodology
General Health Overview
| Metric | Johnson County | Kansas Avg | US Average |
|---|---|---|---|
| Life Expectancy (years) | 80.7 | 78.6 | 78.3 |
| Uninsured Population (%) | 4.9% | 8.8% | 8.4% |
| Self-Rated Poor Health | 8.6% | 15.3% | 16.3% |
Life expectancy in Johnson County is 80.7 years, about 2.1 years longer than the Kansas average of 78.6 years. The uninsured rate is 4.9%, lower than the Kansas average of 8.8%. Self-rated poor health is reported by 8.6% of residents, lower than the Kansas average of 15.3%.
Population by Age
Older residents
199,065 residents in Johnson County are age 50 or older.
- 85+ 11,746 4,135 men · 7,611 women
- 75–84 24,530 10,395 men · 14,135 women
- 65–74 49,411 23,068 men · 26,343 women
- 50–64 113,378 55,488 men · 57,890 women
Younger residents
140,055 residents in Johnson County are age 17 or younger.
- 12–17 44,333 22,773 boys · 21,561 girls
- 7–12 42,123 21,339 boys · 20,784 girls
- 3–7 31,396 15,879 boys · 15,517 girls
- 0–3 22,202 11,248 boys · 10,955 girls
About 20,838 residents in Johnson County (3.4% of the population) are older than the area's life expectancy of 80.7 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 | Kansas Avg | US Average |
|---|---|---|---|
| Diabetes | 8.1% | 11.8% | 11.3% |
| Cancer | 6.0% | 7.6% | 6.9% |
| Heart Diseases | 4.5% | 7.7% | 7.1% |
| Adult Obesity | 29.6% | 37.3% | 34.3% |
The rate of heart disease in Johnson County is about 41% lower than in Kansas. The rate of diabetes in Johnson County is about 31% lower than in Kansas. The rate of cancer in Johnson County is about 21% lower than in Kansas.
Health Behaviors
| Behavior | Johnson County | Kansas Avg | US Average |
|---|---|---|---|
| Smokers | 12.1% | 18.7% | 19.0% |
| Binge Drinking | 18.3% | 16.5% | 16.5% |
| Sedentary Lifestyle | 15.3% | 25.5% | 25.1% |
The rate of sedentary lifestyle in Johnson County is about 40% lower than in Kansas. The rate of smoking in Johnson County is about 35% lower than in Kansas.
Assuming each smoker smokes 10 cigarettes a day, that's about 573,380 cigarettes a day, 17.2 million a month, or 209.3 million a year! At 11 minutes* of life lost per cigarette, that's about 6.3 million minutes a day and 2.3 billion a year lost to smoking overall - and since life expectancy in Johnson County is 80.7 years, that's roughly equivalent to 0.15 lifetimes a day, or 54 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 | Kansas Avg | US Average |
|---|---|---|---|
| Air Pollution (μg/m³) | 7.64 | 6.38 | 6.09 |
With an annual average of 7.6 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, KS Health Compared With Nearby Counties
Johnson County, KS is the 2nd largest of the 6 counties compared here, 619,445 residents against a local median of 120,302. Where Johnson County, KS breaks from the counties next to it is uninsured, sitting 40% below the local median of 8.2% at 4.9%. That is the better end of the local range on this measure.
Obesity tells the same story from another angle: 29.6% against a local median of 38.1%, 22% below it. Every measure here with a clear better direction points the same way, so Johnson County, KS is not trading one advantage for another, it reads stronger than its neighbours across the board. The counties themselves spread 10.9% on uninsured, so Johnson County, KS sits at one end of an already wide local range rather than apart from it. Johnson County, KS has the lowest uninsured of the 6 areas compared here.
| Area | Population | Life expectancy | Uninsured | Obesity |
|---|---|---|---|---|
| Johnson County, KS | 619,445 | 80.7 yrs #1/6 | 4.9% #1/6 | 29.6% #1/6 |
| Wyandotte County, KS | 167,620 | 75.4 yrs | 17.0% | 47.7% |
| Miami County, KS | 34,938 | 79.7 yrs | 7.1% | 38.1% |
| Leavenworth County, KS | 83,123 | 77.2 yrs | 6.1% | 38.6% |
| Douglas County, KS | 120,302 | 80.1 yrs | 8.2% | 30.1% |
| Jackson County, MO | 719,648 | 75.7 yrs | 10.7% | 37.3% |
Conclusion
Considering all these factors, Johnson County, Kansas has an overall health index grade of A, making it notably better than Kansas, and notably better than the country as a whole.
Frequently Asked Questions
Common questions about health in Johnson County, Kansas.
What is the health grade for Johnson County, Kansas?
Johnson County, Kansas has a Map AI Health Index grade of A, based on life expectancy, disease rates, healthcare access, and the physical environment; an A grade means residents are much healthier than the U.S. average.
Is Johnson County, Kansas one of the healthiest counties in Kansas?
Yes. Johnson County ranks 1st of 105 counties in Kansas by the Map AI Health Index, making it the healthiest of them all.
How long do people live in Johnson County, Kansas?
People in Johnson County, Kansas can expect to live 80.7 years on average, 2.1 years longer than the Kansas average of 78.6.
What is the uninsured rate in Johnson County, Kansas?
4.9% of residents in Johnson County, Kansas have no health insurance, about 1 in 21 people, 3.9 points below the Kansas rate of 8.8%.
What percentage of Johnson County, Kansas residents are obese?
29.6% of adults in Johnson County, Kansas are classified as obese, about 1 in 3, 7.6 points below the Kansas rate of 37.3%.
How many cigarettes do smokers in Johnson County, Kansas go through, and how much life does that cost?
Assuming each smoker smokes 10 cigarettes a day, that's about 573,380 cigarettes a day, 17.2 million a month, or 209.3 million a year! At 11 minutes* of life lost per cigarette, that's about 6.3 million minutes a day and 2.3 billion a year lost to smoking overall - and since life expectancy in Johnson County is 80.7 years, that's roughly equivalent to 0.15 lifetimes a day, or 54 lifetimes a year.
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