Population Of California 2024 By County In America. The data are from the u.s. And world population, by state, county, country and age group.

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. Learn how california’s population grew by 6.1% from 2010 to 2020, slower than the previous decade, and explore the 2020 census data on race, ethnicity, diversity, age, and more.