California State Population 2024. At the last official united states census carried out in 2020, the population of california was declared at. 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.
For the most recent data available, please refer to the vintage 2023 data. California is a large state on the west coast of the united states that is home to one of the world’s most diverse populations.