California Population 2025 Trends 2025. On tuesday, april 30, 2025, the california department of finance announced california’s population increased by just over 67,000 people in 2023. In 2023 california’s population grew by nearly 0.2%, or about 67,000 residents.

Updated race and age structure for nhpi, mr, aian; The city had previously peaked at 3.83 million in 2021.