Definition: Estimated total population (e.g., in 2024, the population of California was 39,128,162).
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 (Mar. 2025).
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.
