Population Decline in Los Angeles County Raises Concerns
A significant number of residents have left Los Angeles County, sparking concerns about the region’s future as economic challenges intensify.
Recent estimates from the U.S. Census Bureau indicate that from July 2024 to July 2025, the county experienced the largest population decrease in the nation. Approximately 54,000 people departed during this period, a trend reflecting ongoing population loss in the country’s most populous county.
Back in 2020, the population of Los Angeles County, which once boasted over 10 million residents, has dropped to just under 9.7 million.
Experts point out that while the sheer number of people leaving is striking, the more concerning trend may be the declining number of individuals entering the workforce to replace them.
Interestingly, nearby regions seem to be capitalizing on this shift. Over the same timeframe, Riverside and San Bernardino counties added more than 21,000 residents, and the Las Vegas area also saw an increase of over 20,000 residents, as per the data.
Despite the population dip, Los Angeles County remains significantly larger than other U.S. counties, with nearly double the population of Cook County in Illinois, for instance.
This exodus is not confined only to Los Angeles. There’s a broader trend of population decline sweeping across California, which is largely attributed to a notable drop in immigration.
A report indicated that San Diego County also faced a population decline, losing more than 5,000 people in 2025, a reversal from previous growth. This decline is largely linked to a sharp fall in international migration, with foreign arrivals decreasing about 65% compared to the prior year, attributed to changes in federal immigration policies.
On a national scale, the Census Bureau found that immigration slowed across most U.S. counties last year. Approximately 80% of the over 2,000 counties that had growth last year are expected to experience slowed or reversed growth in 2025.
California has been particularly affected, with all 58 counties witnessing a decrease in foreign immigration. Overall, 30 counties experienced population declines, up from 18 the previous year.
Demographers warn that these shifts could have long-lasting effects that extend beyond mere numbers. For years, immigration has helped balance out declining birth rates and aging populations, particularly in costly regions like coastal California.
Some economists believe the fallout may first hit the labor market. A decline in working-age populations could lead to labor shortages, increased costs, and stagnant economic growth. Certain sectors, such as construction and services, are already feeling pressure as finding workers becomes tougher, partially due to a diminishing immigrant workforce.
Conversely, a significant outflow of residents remains a major contributing factor. Analysts argue that rising housing prices and affordability issues are prompting more Californians to leave the state rather than arrive.
Yet, not everyone views this population drop as a sign of impending economic doom. California’s economy is still one of the largest globally, and some researchers suggest that the situation reflects shifts in policy and cost challenges rather than a fundamental collapse.
The latest figures highlight a broader decline trend in California. From 2010 to 2024, nearly 10 million people left the state, primarily due to high living expenses and housing unaffordability, resulting in a recent annual net loss of over 250,000 residents.
The counties that experienced the most significant declines include Del Norte County (-2%), Tuolumne County (-1.9%), and Lassen County (-1.7%). Notably, Taylor County in Florida (-2.2%) and Vernon Parish in Louisiana (-2.1%) also reported high loss rates.
