Health Profile of Marin County, California
Marin 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+
Marin County Top gradeAmong the top 5 healthiest counties in California
Source: Map AI Methodology
General Health Overview
| Metric | Marin County | California Avg | US Average |
|---|---|---|---|
| Life Expectancy (years) | 83.4 | 79.6 | 78.3 |
| Uninsured Population (%) | 3.8% | 6.6% | 8.4% |
| Self-Rated Poor Health | 10.8% | 16.4% | 16.3% |
Life expectancy in Marin County is 83.4 years, about 3.8 years longer than the California average of 79.6 years. The uninsured rate is 3.8%, lower than the California average of 6.6%. Self-rated poor health is reported by 10.8% of residents, lower than the California average of 16.4%.
Population by Age
Older residents
116,105 residents in Marin County are age 50 or older.
- 85+ 7,321 2,681 men · 4,640 women
- 75–84 17,548 7,707 men · 9,841 women
- 65–74 31,253 14,719 men · 16,534 women
- 50–64 59,983 29,277 men · 30,706 women
Younger residents
47,531 residents in Marin County are age 17 or younger.
- 12–17 16,033 8,219 boys · 7,814 girls
- 7–12 14,145 7,211 boys · 6,934 girls
- 3–7 10,196 5,176 boys · 5,020 girls
- 0–3 7,157 3,631 boys · 3,526 girls
About 9,703 residents in Marin County (3.8% of the population) are older than the area's life expectancy of 83.4 years.
The highlighted slice of the age axis is the share of residents older than the life-expectancy mark.
Disease Prevalence
| Disease / Condition | Marin County | California Avg | US Average |
|---|---|---|---|
| Diabetes | 8.7% | 10.5% | 11.3% |
| Cancer | 7.5% | 6.3% | 6.9% |
| Heart Diseases | 5.6% | 6.4% | 7.1% |
| Adult Obesity | 24.5% | 30.6% | 34.3% |
The rate of obesity in Marin County is about 20% lower than in California. The rate of cancer in Marin County is about 20% higher than in California. The rate of diabetes in Marin County is about 18% lower than in California.
Health Behaviors
| Behavior | Marin County | California Avg | US Average |
|---|---|---|---|
| Smokers | 9.1% | 13.9% | 19.0% |
| Binge Drinking | 17.3% | 18.0% | 16.5% |
| Sedentary Lifestyle | 15.0% | 21.9% | 25.1% |
The rate of smoking in Marin County is about 35% lower than in California. The rate of sedentary lifestyle in Marin County is about 31% lower than in California.
Assuming each smoker smokes 10 cigarettes a day, that's about 188,598 cigarettes a day, 5.7 million a month, or 68.8 million a year! At 11 minutes* of life lost per cigarette, that's about 2.1 million minutes a day and 757.2 million a year lost to smoking overall - and since life expectancy in Marin County is 83.4 years, that's roughly equivalent to 0.05 lifetimes a day, or 17 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 | Marin County | California Avg | US Average |
|---|---|---|---|
| Air Pollution (μg/m³) | 6.68 | 7.63 | 6.09 |
With an annual average of 6.7 µg/m³ of fine particulate matter (PM2.5), air quality in Marin County is good — generally safe air quality for the vast majority of residents.
Marin County, CA Health Compared With Nearby Counties
Marin County, CA is the 5th largest of the 6 counties compared here, 257,932 residents against a local median of 733,246. Marin County, CA's uninsured, at 3.8%, runs 19% below the 4.6% typical of the counties around it. That is the better end of the local range on this measure.
The counties themselves spread 2.4% on uninsured, so Marin County, CA sits at one end of an already wide local range rather than apart from it. Marin County, CA has the 2nd lowest uninsured of the 6 areas compared here.
| Area | Population | Life expectancy | Uninsured | Obesity |
|---|---|---|---|---|
| Marin County, CA | 257,932 | 83.4 yrs #1/6 | 3.8% #2/6 | 24.5% #3/6 |
| San Francisco County, CA | 829,818 | 81.9 yrs | 3.3% | 19.4% |
| Sonoma County, CA | 485,012 | 80.6 yrs | 5.1% | 24.8% |
| Napa County, CA | 134,769 | 81.3 yrs | 5.7% | 27.2% |
| San Mateo County, CA | 733,246 | 82.7 yrs | 3.8% | 21.9% |
| Contra Costa County, CA | 1,163,035 | 80.8 yrs | 4.6% | 28.7% |
Conclusion
Considering all these factors, Marin County, California has an overall health index grade of A+, making it notably better than California, and far better than the country as a whole.
Frequently Asked Questions
Common questions about health in Marin County, California.
Is Marin County, California a healthy place to live?
Marin County, California 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 among the healthiest and longest-living in the country.
Is Marin County, California one of the healthiest counties in California?
Marin County ranks 4th healthiest out of 58 counties in California by the Map AI Health Index, which measures life expectancy, disease rates, healthcare access, and the physical environment.
How long do people live in Marin County, California?
People in Marin County, California can expect to live 83.4 years on average, 3.8 years longer than the California average of 79.6.
How many people lack health insurance in Marin County, California?
3.8% of residents in Marin County, California have no health insurance, about 1 in 27 people, 2.8 points below the California rate of 6.6%.
What is the obesity rate in Marin County, California?
24.5% of adults in Marin County, California are classified as obese, about 1 in 4, 6.1 points below the California rate of 30.6%.
How many cigarettes do smokers in Marin County, California go through, and how much life does that cost?
Assuming each smoker smokes 10 cigarettes a day, that's about 188,598 cigarettes a day, 5.7 million a month, or 68.8 million a year! At 11 minutes* of life lost per cigarette, that's about 2.1 million minutes a day and 757.2 million a year lost to smoking overall - and since life expectancy in Marin County is 83.4 years, that's roughly equivalent to 0.05 lifetimes a day, or 17 lifetimes a year.
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