LA and SD suffer major population drops as immigration slows and CA residents flee

Southern California is starting to feel the squeeze, and the population numbers prove it.

New federal estimates show the Los Angeles and San Diego metro areas are both shrinking, as fewer immigrants arrive and more residents head for the exits.

It’s a sharp reversal for regions that have long depended on a steady flow of newcomers to keep growth alive.

The problem? That pipeline is drying up fast.

A steep drop in immigration, driven by tighter enforcement and fewer legal entry options, is leaving a noticeable dent. At the same time, high costs of living are pushing locals to relocate to cheaper parts of the country, creating a double hit that’s dragging population numbers down.

In the Los Angeles area, the imbalance is hard to ignore, roughly 131,000 people packed up and left in just one year, while only about 38,500 new international arrivals came in. It’s nowhere near enough to close the gap.

San Diego is seeing a similar pattern, with outbound domestic migration outpacing gains from abroad.

Across the country, the trend is gaining momentum. A total of 83 of the nation’s 387 metro areas lost population over the past year, up sharply from 52 the year before, and even many of those still growing are slowing down.

One big reason: fewer people are coming into the US in the first place. Nationwide population growth crawled at just 0.5% last year, one of the weakest showings in recent memory. At the same time, about 40% of metro areas now see more deaths than births, increasing reliance on new arrivals to stay afloat.

And in a striking shift, last year the US saw more people leave than arrive, a rare reversal not clearly seen since the Great Depression.

The Trump administration has pointed to that negative met migration as proof its tougher stance is working, highlighting increased deportations and tighter visa limits as key wins.

Here in California, the fallout is especially visible. Big metros like Los Angeles and San Diego have long attracted young workers and immigrants, only to lose many of them to more affordable regions.

Now, with fewer newcomers replacing those losses, the math simply is not working.

The result: shrinking populations, slowing growth and mounting pressure on two of The Golden State’s most important economic engines.

Unless the flow of new residents rebounds, the trend could stick, and Southern California’s decades-long expansion may keep heading in the wrong direction.

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