California’s population grew by just 19,200 people in the year ending July 1, 2025, reaching about 39.53 million residents. While statewide growth was slow, some regions, like Sacramento and the Central Valley, continue to gain residents steadily, whereas San Francisco’s recent rebound has largely stalled. This uneven growth is affecting housing, schools, and planning priorities across the state.
Statewide Snapshot
The California Department of Finance reported that the state’s population grew by about 19,200 people—a 0.05% increase—to roughly 39.53 million in the year ending July 1. International immigration accounted for most of the growth, though the end of several humanitarian programs limited the increase. Meanwhile, California saw a net domestic migration loss of around 216,000 people, offsetting much of the international inflow.
Sacramento Climbs, San Francisco Stalls
Population changes are uneven across the state. Sacramento County added nearly 8,800 residents, one of the largest gains among major counties. In contrast, San Francisco’s population grew by fewer than 300 people and remains roughly 30,000 below its pre-pandemic level.
Most of California’s population growth occurred in the Central Valley, where people are moving from—or bypassing—coastal cities. This trend is driving up demand in inland housing markets, while growth in some coastal areas remains slow.
What Is Driving the Numbers
The Department of Finance said the small statewide increase resulted from three main factors: a rebound in international immigration that added about 126,000 people, more births than deaths, and ongoing domestic out-migration that offset some of the gains.
The agency said that policy changes—like ending several humanitarian migration programs—along with continued outmigration, mean future population growth is likely to be smaller. Local factors create a patchwork of counties gaining or losing residents rather than a uniform statewide rebound.
Fire, Displacement and Los Angeles
Not all population losses are due to voluntary moves. Los Angeles County saw one of the largest drops in the state, losing nearly 28,500 residents, which the Department of Finance partly linked to evacuations and damage from the Palisades and Eaton fires, according to the San Francisco Chronicle.
The wildfires, which destroyed thousands of structures and forced mass evacuations, have been reported by outlets including The Washington Post, illustrating how disasters can quickly affect county population totals. This sudden displacement, combined with slower international arrivals, helps explain why some major coastal counties declined even as the state’s overall population edged up.
Local Implications
For city leaders, planners, and developers, these figures influence more than just spreadsheets. School enrollment, transit funding, and housing permits all depend on current population locations rather than past or desired ones. Analysts told the Los Angeles Times that continued legal immigration and a steady natural increase have driven growth inland, benefiting areas of the Central Valley and the Inland Empire.
For San Francisco, the situation highlights the need to convert underused office space into housing and strengthen services to attract long-term residents. Inland communities, meanwhile, face challenges from the population increase, including pressure on schools and housing markets that were already tight before the recent growth.
The next questions are whether international arrivals rise if federal policies shift and whether inland housing demand leads to real construction instead of longer commutes. Economists and local officials will watch updated Department of Finance data and upcoming Census releases to see if the current patchwork pattern continues or evolves into broader growth. For now, the December estimates show that California’s population trends remain highly regional rather than uniform statewide.
