AbstractThe California Racial Justice Act of 2020 recognized racial and ethnic discrimination as a basis for relief in capital cases, expressly permitting several types of statistical evidence to be introduced. This statewide study of the influence of race and ethnicity on the application of capital punishment contributes to this evidence. We draw on data from over 27,000 murder and manslaughter convictions in California state courts between 1978 and 2002. Using multiple methods, we found significant racial and ethnic disparities in charging and sentencing decisions. Controlling for defendant culpability and specific statutory aggravators, we show that Black and Latinx defendants and all defendants convicted of killing at least one white victim are substantially more likely to be sentenced to death. We further examined the role that race and ethnicity have in decision‐making at various points in the criminal justice system. We found that prosecutors were significantly more likely to seek death against defendants who kill white victims, and that juries were significantly more likely to sentence those defendants to death. The magnitude of the race of the defendant and race of the victim effects is substantially higher than in prior studies in other states and in single‐jurisdiction research. The results show an entrenched pattern of racial disparities in charging and sentencing that privileges white victim cases, as well as patterns of racial disparities in who is charged and sentenced to death in California courts that are the natural result of California's capacious statutory definition of death eligibility, which permits virtually unlimited discretion for charging and sentencing decisions. This pattern of racial preferences illustrates the social costs of California's failure to follow the Supreme Court's directive in Furman v Georgia to narrow the application of capital punishment over 50 years ago.