Population Of California 2024 Trend. The population of california in 2021 was 39,145,060, a 0.91% decline from 2020. California’s population growth in 2024 highlights the dynamic nature of the state’s demographic trends.
1, 2024, when california was home to 39,128,162 people,. Projections of population with components of change, births, and public school enrollment at the state and county level produced by the demographic research unit (dru).