Contra Costa County Health Data
Contra Costa County, California
Health Score
89/100
Excellent
Life Expectancy
81.2 yr
Uninsured Rate
5.2%
Health Statistics
Life Expectancy
81.2 yr
State avg 78.5 yr
National avg 77.5 yr
Uninsured Rate
5.2%
State avg 7.2%
National avg 9%
Primary Care Providers
101
per 100K population
National avg 82
Mental Health Providers
411
per 100K population
National avg 350
Data Story
About Health in Contra Costa County, California
Contra Costa's health shines
Residents of Contra Costa County live an average of 81.2 years, nearly 5 years longer than the U.S. average of 76.1 years and well above California's 78.5 state average. Only 15.5% report poor or fair health, significantly below the national rate of 18%, marking Contra Costa as one of California's healthiest regions. These metrics reflect strong economic resources and healthcare infrastructure in the Bay Area.
Top-tier health outcomes statewide
At 81.2 years, Contra Costa's life expectancy ranks in California's top tier, trailing only Alameda (82.0 years) among major counties. Its 15.5% poor/fair health rate is among the state's best, placing Contra Costa solidly in the healthiest quintile of the state's 58 counties. The county consistently outperforms state averages on longevity and health indicators.
Bay Area powerhouse
Contra Costa's 81.2-year life expectancy is the second-best regionally, just behind Alameda (82.0 years), and far surpasses inland rivals like Amador (78.5) and Calaveras (78.8). Its 15.5% poor/fair health rate is nearly tied with Alameda and Colusa as among the state's lowest. Contra Costa demonstrates the health advantage of dense urban infrastructure and affluent communities.
Strong access, low uninsurance
Just 5.2% of Contra Costa residents lack health insurance—below both California's 7.2% state average and neighboring Alameda's 4.5%—giving most residents access to care. The county provides 101 primary care providers per 100,000 and 411 mental health providers per 100,000, supporting robust preventive and behavioral health services. High provider density and coverage rates enable early intervention and continuity of care.
Maintain your coverage advantage
With 94.8% of Contra Costa residents insured, the county has nearly achieved universal coverage—an achievement worth protecting. Use coveredca.com or medi-cal.ca.gov to renew or switch plans during open enrollment or when life changes occur. Year-round support is available through Contra Costa's Department of Health Services.
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Frequently Asked Questions
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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.