California Population 2024 Growth Rate 2024. This report provides revised population and housing estimates as of january 1, 2023, and provisional population and housing estimates as of january 1, 2024, for the state, counties, and cities and includes a calculation of annual percent change. Its population rose by 0.8% between 2023 and 2024 — for an estimated 411,109 people as of jan.

The state’s population increased by 0.17% — or more than 67,000 people — between jan. The state ’s largest decline was between 2020 and 2021 when the population dropped 0.9%.