Selected county
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Age-adjusted death rate—per 100,000 · 2021–2023
California rate——
2022 population—CDPH profile denominator
Project Phoenix · evidence pilotOfficial California data · loading
California health atlas
California Health, County by County
See where mortality burdens diverge across California, how each county compares with the statewide rate, and which statewide measures changed from the previous period.
Explore US Health Services Spending versus Health Outcomes →58California counties
7age-adjusted outcomes
95%confidence intervals retained
Mortality measure
Executive summary
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Plain-language reading
What the county result says
Geographic pattern
Every county on one map
Darker warm colors indicate higher age-adjusted mortality within California for the selected measure.
LowerHigher
County distribution
Where the selected county sits
The vertical guide is the statewide rate. County dots use the same official age-adjusted measure.
A county point estimate can differ from California without the difference being statistically significant. Confidence intervals appear in the selected-county card and tooltip.
Statewide movement
Current period versus the previous period
California age-adjusted rates for 2021–2023 compared with the preceding period reported by CDPH.
Caveats
This page describes geographic patterns; it does not establish why counties differ. Mortality reflects medical care, age, income, housing, environment, behavior, migration, reporting practices, and other conditions. County estimates use three-year averages to reduce instability. Small counties can still have wide intervals, and CDPH marks estimates with a relative standard error of at least 23 percent as unreliable.
What does age-adjusted mean?
Counties have different age structures, and mortality generally rises with age. Age adjustment applies a common standard population so the displayed rates are more comparable. The result is a standardized rate, not a county's literal observed probability of death.
Why does this page not use CHIS or 2024 BRFSS?
This first module uses one coherent CDPH county series with consistent geography, periods, rate definitions, and confidence intervals. CHIS and California BRFSS measure additional conditions and behaviors through different survey designs. They can support a later demographic module, but mixing them into this mortality series would make comparisons harder to interpret.
Sources and attribution
LifeMeter preserves the official observation periods, confidence intervals, reliability flags, source links, and source-file hashes. County boundaries come from the U.S. Census Bureau's TIGERweb service.