by Jack Phillips

Since 2020, some 2.6 million people have moved out of U.S. counties that were won by President Joe Biden and into those that former President Donald Trump prevailed in, the analysis found. It cited recent Census Bureau data.

"More than 61 percent of the counties that voted for Biden in 2020 lost population, while 65 percent of Trump-supporting counties gained population," the Issues and Insights analysis said. The data showed that some 2,562,937 people moved from Democrat-leaning counties to Republican-leaning counties since Biden was elected in the divisive November 2020 election.

The two counties that lost the most population from net internal migration were Los Angeles County and Cook County, Illinois, which both overwhelmingly voted in favor of Biden. Cook, which includes Chicago, was down about 200,718, while Los Angeles lost about 363,000 people since the election.

California, which has a Democrat governor and legislature, experienced "a massive net outflow" of people—871,127—in the past two years. New Jersey, which has a Democrat-controlled legislature and a Democrat governor, lost 107,000 people in the same time period, although the analysis noted that red counties in the Garden State gained 22,507.

"While many of the blue counties that lost population were urbanized," it said, "the exodus was widespread and nationwide, including many far more sparsely populated liberal areas."