What Is The Population Of California 2024 In Millions. At the last official united states census carried out in 2020, the population of california was declared at 39,538,223 which makes the state the most populous by a wide margin over 2nd. California proposition 36 would roll back some of the reforms contained in proposition 47, the 2014 measure approved by voters in 2014.

Quickfacts provides statistics for all states and counties. The state’s population growth can be.