California Population 2025 Census Projections. Aterio data team has developed an ai enhanced model that helps organizations understand the forecasted growth of population in california for years. If it were a country, california would be the 36th most populous in the world, larger than iraq and poland.

If it were a country, california would be the 36th most populous in the world, larger than iraq and poland. While california did see a small increase in its population last year, the overall trend since 2019 has been that of gradual decline, decreasing from 39.53 million in 2020 to.