San Mateo County Health Data

San Mateo County, California

Health Score

97/100

Excellent

Life Expectancy

84.1 yr

Uninsured Rate

4.6%

Health Statistics

Life Expectancy

84.1 yr

State avg 78.5 yr

National avg 77.5 yr

Uninsured Rate

4.6%

State avg 7.2%

National avg 9%

Primary Care Providers

109

per 100K population

National avg 82

Mental Health Providers

485

per 100K population

National avg 350

Data Story

About Health in San Mateo County, California

San Mateo leads on longevity

San Mateo residents live to 84.1 years on average, nearly 6 years longer than the U.S. average of 78.3 years. Only 13.2% report poor or fair health, well below the national rate of 18%, signaling strong overall wellness in the county.

California's healthiest counties

San Mateo's 84.1-year life expectancy ranks among the top in California, exceeding the state average of 78.5 years by 5.6 years. The county consistently outperforms state benchmarks across major health indicators.

Clear health edge over peers

San Mateo residents live 2.3 years longer than Santa Clara County (83.8 years) and 2.5 years longer than Santa Cruz County (81.8 years). With a 13.2% poor/fair health rate, San Mateo also reports significantly better self-reported health than neighboring Santa Barbara County at 16.7%.

Strong providers, low uninsured

Just 4.6% of San Mateo residents lack health insurance, well below California's 7.2% state average. The county supports 109 primary care providers and 485 mental health providers per 100,000 residents, ensuring robust access to care.

Maintain coverage you can trust

Even with low uninsured rates, coverage gaps can emerge. Visit coveredca.com to explore plans, confirm your current coverage is optimal, or enroll if you've experienced a life change qualifying you for immediate coverage.

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Frequently Asked Questions

What is the health ranking of San Mateo County, CA?
San Mateo County has a health score of 97/100, rated "Excellent." It ranks #3 out of 58 counties in California (1 = healthiest). The score is based on CDC County Health Rankings data, combining life expectancy, uninsured rates, provider access, and behavioral health indicators.
What is the life expectancy in San Mateo County?
Life expectancy in San Mateo County is 84.1 years. The California state average is 78.5 years, making San Mateo County above the state average.
How does San Mateo County health compare to the California average?
San Mateo County's health score of 97/100 is above the California average of 67/100. Life expectancy is 84.1 years vs. the state average of 78.5 years. The uninsured rate is 4.6% vs. 7.2% statewide.
What health factors affect San Mateo County?
Key health factors for San Mateo County include: life expectancy (84.1 years), uninsured rate (4.6%), and primary care physician access (109:1 (population to primary care physicians)). Mental health provider access is 485:1 population-to-provider ratio. These metrics are sourced from the CDC County Health Rankings & Roadmaps program.
Is San Mateo County a healthy place to live?
With a health score of 97/100 ("Excellent"), San Mateo County is one of the healthier counties in California. Residents have a life expectancy of 84.1 years. 4.6% of adults lack health insurance. Factors like healthcare access, environmental quality, and socioeconomic conditions all contribute to these outcomes.
Why is San Mateo County healthier than the California average?
San Mateo County's health score of 97/100 exceeds the California average of 67/100. Higher health scores often correlate with better access to healthcare providers, lower uninsured rates, higher median incomes, and environmental factors.

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Data Sources

Health data sourced from the County Health Rankings & Roadmaps, a collaboration between the Robert Wood Johnson Foundation and the University of Wisconsin Population Health Institute.

Data is informational only. Not medical or health advice. Coverage varies by county and reporting year.