California Population 2023 Graph. This updated report presents revised state population estimates and components of change consistent with the currently published state and county estimates series. In 2023, the percentage of population under age 65 without health insurance was 8.17% in california.

The dashed vertical green line denotes when the forecast period starts in 2023. Among its 1,422 counties, the average annual change was 0.56%, up from 0.31% the prior.