California Population 2025 Projection By County
California Population 2025 Projection By County. The state and county population are independently estimated using population change models benchmarked on official decennial census counts. California population in 2025 is estimated to be 38.99 million residents, losing population since the last census of 2020.
Santa clara county’s population is projected to increase from 1.9 million to 2.1 million, san mateo county’s is projected to decrease from 733,000 to 717,000, alameda. Not surprisingly, california’s los angeles county is the largest county in the state, as well as the nation, with a huge population of 10,150,558 that continues.