California Population Decline 2025. In 2023, however, 505,000 people left the state, while. As of july, california’s population fell to an estimated 38,965,000, down by 75,400 over 12 months, according to recent data from the u.s.
California’s population increased in 2023 for the first time in three years. In 2023, however, 505,000 people left the state, while.