Definition: Estimated total population (e.g., in 2021, the population of California was 39,466,855).
Data Source: California Dept. of Finance, E-4 Historical Population Estimates for Cities, Counties, and the State; U.S. Census Bureau, Population and Housing Unit Estimates (Aug. 2021).
Footnote: Data for California, counties, and cities reflect the population on January 1; data for the U.S. reflect the population on July 1. N/A means that data are not available.