Health Profile of Johnston, Iowa
Johnston 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
Johnston Above average
Source: Map AI Methodology
General Health Overview
| Metric | Johnston | Iowa Avg | US Average |
|---|---|---|---|
| Life Expectancy (years) | 81.4 | 79.2 | 78.3 |
| Uninsured Population (%) | 1.8% | 5.0% | 8.4% |
| Self-Rated Poor Health | 8.9% | 13.6% | 16.3% |
Life expectancy in Johnston is 81.4 years, about 2.1 years longer than the Iowa average of 79.2 years. The uninsured rate is 1.8%, lower than the Iowa average of 5.0%. Self-rated poor health is reported by 8.9% of residents, lower than the Iowa average of 13.6%.
Population by Age
Older residents
6,354 residents in Johnston are age 50 or older.
- 85+ 373 136 men · 237 women
- 75–84 702 216 men · 486 women
- 65–74 1,545 679 men · 866 women
- 50–64 3,734 1,900 men · 1,834 women
Younger residents
5,704 residents in Johnston are age 17 or younger.
- 12–17 1,784 892 boys · 892 girls
- 7–12 1,776 884 boys · 892 girls
- 3–7 1,273 632 boys · 641 girls
- 0–3 870 462 boys · 408 girls
About 638 residents in Johnston (3.1% of the population) are older than the area's life expectancy of 81.4 years.
The highlighted slice of the age axis is the share of residents older than the life-expectancy mark.
Disease Prevalence
| Disease / Condition | Johnston | Iowa Avg | US Average |
|---|---|---|---|
| Diabetes | 7.5% | 10.6% | 11.3% |
| Cancer | 6.4% | 7.6% | 6.9% |
| Heart Diseases | 4.8% | 7.3% | 7.1% |
| Adult Obesity | 31.6% | 37.3% | 34.3% |
The rate of heart disease in Johnston is about 34% lower than in Iowa. The rate of diabetes in Johnston is about 29% lower than in Iowa. The rate of cancer in Johnston is about 16% lower than in Iowa.
Health Behaviors
| Behavior | Johnston | Iowa Avg | US Average |
|---|---|---|---|
| Smokers | 12.3% | 17.6% | 19.0% |
| Binge Drinking | 24.0% | 20.8% | 16.5% |
| Sedentary Lifestyle | 16.3% | 25.4% | 25.1% |
The rate of sedentary lifestyle in Johnston is about 36% lower than in Iowa. The rate of smoking in Johnston is about 30% lower than in Iowa. The rate of binge drinking in Johnston is about 16% higher than in Iowa.
Assuming each smoker smokes 10 cigarettes a day, that's about 17,778 cigarettes a day, 533,345 a month, or 6.5 million a year! At 11 minutes* of life lost per cigarette, that's about 195,560 minutes a day and 71.4 million a year lost to smoking overall - and since life expectancy in Johnston is 81.4 years, that's roughly equivalent to 0.00 lifetimes a day, or 1.67 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 | Johnston | Iowa Avg | US Average |
|---|---|---|---|
| Air Pollution (μg/m³) | 6.53 | 6.49 | 6.09 |
With an annual average of 6.5 µg/m³ of fine particulate matter (PM2.5), air quality in Johnston is good — generally safe air quality for the vast majority of residents.
Johnston, IA Health Compared With Nearby Cities
How Johnston, IA compares with the 1 cities closest to it.
| Area | Population | Life expectancy | Uninsured | Obesity |
|---|---|---|---|---|
| Johnston, IA | 20,666 | 81.4 yrs #1/2 | 1.8% #1/2 | 31.6% #1/2 |
| Urbandale, IA | 42,731 | 81.0 yrs | 4.9% | 34.0% |
Conclusion
Considering all these factors, Johnston, Iowa has an overall health index grade of A, making it notably better than Iowa, and notably better than the country as a whole.
Frequently Asked Questions
Common questions about health in Johnston, Iowa.
How healthy is Johnston, Iowa?
Johnston, Iowa 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.
What is the life expectancy in Johnston, Iowa?
People in Johnston, Iowa can expect to live 81.4 years on average, 2.1 years longer than the Iowa average of 79.2.
What percentage of Johnston, Iowa residents are uninsured?
1.8% of residents in Johnston, Iowa have no health insurance, about 1 in 56 people, 3.2 points below the Iowa rate of 5.0%.
What percentage of Johnston, Iowa residents are obese?
31.6% of adults in Johnston, Iowa are classified as obese, about 1 in 3, 5.7 points below the Iowa rate of 37.3%.
How many cigarettes do smokers in Johnston, Iowa go through, and how much life does that cost?
Assuming each smoker smokes 10 cigarettes a day, that's about 17,778 cigarettes a day, 533,345 a month, or 6.5 million a year! At 11 minutes* of life lost per cigarette, that's about 195,560 minutes a day and 71.4 million a year lost to smoking overall - and since life expectancy in Johnston is 81.4 years, that's roughly equivalent to 0.00 lifetimes a day, or 1.67 lifetimes a year.
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