California Population 2024 Forecast 2023. The population of california in 2023 was 38,965,193, a 0.19%. The california department of finance released a population estimate on tuesday showing the state gained just over 67,000 people in 2023 for a total population of more than.

California contains the second largest city (los angeles), 3 of the largest 10 cities (los angeles, san diego, and san jose), and the largest county (los angeles county) in the united states. The california department of finance released a population estimate on tuesday showing the state gained just over 67,000 people in 2023 for a total.