What Is The Population Of California 2024 In Millions. From 1959 to 2022, california’s average rate. The golden state’s population was 39,538,223 in 2020, a 6.1% increase since 2010 but slower than its 10% gain in the previous decade.

Quickfacts provides statistics for all states and counties. California is still the largest state with more than 39 million residents as of 2022, constituting 11.7 percent of the u.s.