How much does immigration drive U.S. population growth?
Core argument: More than nine million people have migrated to the U.S. on net since the end of 2020, coming both legally and illegally, nearly as many as arrived in the previous decade, according to Congressional Budget Office estimates and projections.
Since the end of 2020, more than nine million people have migrated to the U.S., after subtracting those who have left, coming both legally and illegally, according to estimates and projections from the Congressional Budget Office. That’s nearly as many as the number that came in the previous decade. Immigration has lifted U.S. population growth to almost 1.2% a year, the highest since the early 1990s. Without it, the U.S. population would be growing 0.2% a year because of declining birthrates and would begin shrinking around 2040, the CBO projects. Most migrants didn’t come through regular legal channels. Less than 30%, or 2.6 million, are what the CBO counts as “lawful permanent residents,” which includes green-card holders and other immigrants who came through legal channels, such as family or employment-based visas.

