Health Profile of Ontario, California
Ontario 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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B
Ontario Around average
Source: Map AI Methodology
General Health Overview
| Metric | Ontario | California Avg | US Average |
|---|---|---|---|
| Life Expectancy (years) | 79.2 | 79.6 | 78.3 |
| Uninsured Population (%) | 9.2% | 6.6% | 8.4% |
| Self-Rated Poor Health | 18.2% | 16.4% | 16.3% |
Life expectancy in Ontario is 79.2 years, about 0.4 years shorter than the California average of 79.6 years. The uninsured rate is 9.2%, higher than the California average of 6.6%. Self-rated poor health is reported by 18.2% of residents, higher than the California average of 16.4%.
Population by Age
Older residents
46,124 residents in Ontario are age 50 or older.
- 85+ 1,537 576 men · 961 women
- 75–84 4,623 1,977 men · 2,646 women
- 65–74 10,214 4,671 men · 5,543 women
- 50–64 29,749 14,368 men · 15,381 women
Younger residents
43,404 residents in Ontario are age 17 or younger.
- 12–17 13,154 6,639 boys · 6,515 girls
- 7–12 13,172 6,405 boys · 6,767 girls
- 3–7 10,004 4,800 boys · 5,204 girls
- 0–3 7,074 3,456 boys · 3,618 girls
About 3,742 residents in Ontario (2.1% of the population) are older than the area's life expectancy of 79.2 years.
The highlighted slice of the age axis is the share of residents older than the life-expectancy mark.
Disease Prevalence
| Disease / Condition | Ontario | California Avg | US Average |
|---|---|---|---|
| Diabetes | 10.2% | 10.5% | 11.3% |
| Cancer | 3.9% | 6.3% | 6.9% |
| Heart Diseases | 4.4% | 6.4% | 7.1% |
| Adult Obesity | 39.7% | 30.6% | 34.3% |
The rate of cancer in Ontario is about 39% lower than in California. The rate of heart disease in Ontario is about 30% lower than in California. The rate of obesity in Ontario is about 30% higher than in California.
Health Behaviors
| Behavior | Ontario | California Avg | US Average |
|---|---|---|---|
| Smokers | 13.8% | 13.9% | 19.0% |
| Binge Drinking | 19.4% | 18.0% | 16.5% |
| Sedentary Lifestyle | 25.9% | 21.9% | 25.1% |
The rate of sedentary lifestyle in Ontario is about 18% higher than in California.
Assuming each smoker smokes 10 cigarettes a day, that's about 188,118 cigarettes a day, 5.6 million a month, or 68.7 million a year! At 11 minutes* of life lost per cigarette, that's about 2.1 million minutes a day and 755.3 million a year lost to smoking overall - and since life expectancy in Ontario is 79.2 years, that's roughly equivalent to 0.05 lifetimes a day, or 18 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 | Ontario | California Avg | US Average |
|---|---|---|---|
| Air Pollution (μg/m³) | 12.62 | 7.63 | 6.09 |
With an annual average of 12.6 µg/m³ of fine particulate matter (PM2.5), air quality in Ontario is moderate — acceptable air quality, though unusually sensitive individuals may notice effects.
Ontario, CA Health Compared With Nearby Cities
Ontario, CA is the largest of the 6 cities compared here, 180,552 residents against a local median of 79,252. Ontario, CA's uninsured, at 9.2%, runs 45% above the 6.3% typical of the cities around it. That is the weaker end of the local range on this measure.
The cities themselves spread 5.4% on uninsured, so Ontario, CA sits at one end of an already wide local range rather than apart from it. Ontario, CA has the 5th lowest uninsured of the 6 areas compared here.
| Area | Population | Life expectancy | Uninsured | Obesity |
|---|---|---|---|---|
| Ontario, CA | 180,552 | 79.2 yrs #6/6 | 9.2% #5/6 | 39.7% #6/6 |
| Chino, CA | 95,396 | 79.3 yrs | 6.8% | 37.2% |
| Eastvale, CA | 55,018 | 81.0 yrs | 3.7% | 28.8% |
| Upland, CA | 79,252 | 80.4 yrs | 6.3% | 35.8% |
| Montclair, CA | 38,094 | 80.7 yrs | 9.2% | 39.2% |
| Rancho Cucamonga, CA | 175,413 | 80.8 yrs | 5.0% | 35.9% |
Conclusion
Considering all these factors, Ontario, California has an overall health index grade of B, making it about on par with California, and somewhat better than the country as a whole.
Frequently Asked Questions
Common questions about health in Ontario, California.
What is the health grade for Ontario, California?
Ontario, California has a Map AI Health Index grade of B, based on life expectancy, disease rates, healthcare access, and the physical environment; a B grade means residents are somewhat healthier than the U.S. average.
What is the average lifespan in Ontario, California?
People in Ontario, California can expect to live 79.2 years on average, about the same as the California average of 79.6.
What is the uninsured rate in Ontario, California?
9.2% of residents in Ontario, California have no health insurance, about 1 in 11 people, 2.6 points above the California rate of 6.6%.
What percentage of Ontario, California residents are obese?
39.7% of adults in Ontario, California are classified as obese, about 1 in 3, 9.1 points above the California rate of 30.6%.
What is the biggest health concern in Ontario, California?
Compared with California as a whole, obesity stands out most: the adult rate here is 39.7%, about 30% higher than the California rate of 30.6%.
How many cigarettes do smokers in Ontario, California go through, and how much life does that cost?
Assuming each smoker smokes 10 cigarettes a day, that's about 188,118 cigarettes a day, 5.6 million a month, or 68.7 million a year! At 11 minutes* of life lost per cigarette, that's about 2.1 million minutes a day and 755.3 million a year lost to smoking overall - and since life expectancy in Ontario is 79.2 years, that's roughly equivalent to 0.05 lifetimes a day, or 18 lifetimes a year.
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