California Population 2024: Facts And Figures By County. For the most recent data available, please refer to the vintage 2023. California’s population declined for the first time in 2021:

California population and housing estimates from april 1, 2020 to january 1, 2024. This report provides the revised population and housing estimates for january 1, 2021, january 1, 2023 and provisional population and housing estimates for january 1, 2024,.