Population Of Southern California 2024. You can get the most current census population data for all 1,573 california cities, sorted from the most populous cities in california to the least, according to the 2023. The largest cities in southern california are los angeles with a population of 4 million people, according to 2017 estimates.
Updated 1:23 pm pst, november 10, 2024. The largest cities in southern california are los angeles with a population of 4 million people, according to 2017 estimates.