California Population Growth 2025. That was down by 75,400 in a year and. This report provides revised population and housing estimates as of january 1, 2023, and provisional population and housing estimates as of january 1, 2025, for the state, counties,.

That was down by 75,400 in a year and. This slower growth stands in sharp contrast with the previous century, which saw california’s population explode from under 2 million to 34 million.