California Population 2024 Trends And Challenges. Nearly every city has a mixture of population growth and population decline. 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.

California’s population will continue to change as trends in births, deaths, international immigration, and interstate migration shift. Much of the population is centered in several large.