data california 2024California’s population has seen a snificant increase in 2025, nearly returning to pre-pandemic levels. According to the U.S. Census Bureau, the state’s population grew by approximately 233,000 residents this year,Vintage 2025 (2025.04.25): updated with July 1 estimates; update of mration data; Vintage 2025 (2025.9.23): initial public data release. Population projections visualization