California Population 2024 Graph 2024. Projections of population with components of change, births, and public school enrollment at the state and county level produced by the demographic research. Charts show most detailed data on how california’s population is changing by county.

Usafacts uses census data to break down the population of california by race, age, and more. California is the most populous state in the us with a nominal gdp at $3.9 trillion usd, 5th highest in the world and 14.2% of the united states nominal gdp.