California Population Change 2024. 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 (state of. An estimate released in decembe r by the u.s.

California is losing households at all. For example, 2000 refers to july 2000 and measures change since july 1999.