Southern California Immigration Plunges Amid Crackdown

Foreign immigration to the region drops by over 50% in the past year compared to previous 4-year pace.

Mar. 30, 2026 at 3:49pm

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An abstract, fragmented painting depicting a person walking through an urban environment, with overlapping geometric shapes and brushstrokes in muted tones of grey, blue, and brown, conveying a sense of movement and change.A fractured, avant-garde painting captures the disruption and shifting demographics resulting from the dramatic decline in foreign immigration to Southern California.Los Angeles Today

Southern California saw a dramatic 53% decline in foreign immigration over the past year compared to the previous 4-year period, with the Inland Empire, Los Angeles-Orange County, and San Diego metro areas all experiencing steep drops of 85%, 48%, and 50% respectively. The overall population in the region also declined as a result, with Los Angeles-Orange County seeing the biggest tumble among the nation's 50 largest metros.

Why it matters

The sharp decline in foreign immigration to Southern California has significant economic and demographic implications for the region, which has long been a magnet for immigrants. Critics argue the drop in foreign inflow hurts the region's business climate and leads to worker shortages, while proponents say it reduces strain on infrastructure and public services.

The details

Last year's foreign immigration to the Southern California region of 46,700 was a 53,700 decline from the 2020-24 pace of inflow, or a 53% tumble. The Inland Empire saw an 85% drop, Los Angeles-Orange County a 48% decline, and San Diego a 50% decrease. Overall, the five-county Southern California region lost 209,300 residents over five years, a 1% decline, to 20.9 million residents.

  • Last year's foreign immigration to the region of 46,700 was a decline from the 2020-24 pace of inflow.
  • The Trump administration's immigration crackdown began in January 2025, the start of his second term as president.

The players

Donald Trump

The former president whose tighter immigration policies during his second term starting in 2025 contributed to the sharp decline in foreign immigration to Southern California.

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The takeaway

The dramatic drop in foreign immigration to Southern California over the past year highlights the significant impact of the Trump administration's tighter immigration policies, which have stirred debate over the economic and demographic implications for the region. As the region grapples with population decline and worker shortages, the future direction of immigration policy will be a key issue.