What the data says about immigrants in the U.S.
As of June 2025, the country’s foreign-born population had shrunk by more than a million people, marking its first decline since the 1960s.
Numbers, Facts and Trends Shaping Your World
Short-form data and analysis from Pew Research Center writers and social scientists. To view all our reports and publications, visit our main Publications page.
As of June 2025, the country’s foreign-born population had shrunk by more than a million people, marking its first decline since the 1960s.
The majority of the 16.1% of adults who describe themselves as unaffiliated, and 12.1% of the adult population overall, is made up of people who simply describe their religion as “nothing in particular.”
Men are significantly more likely than women to claim no attachment to a particular religion, with nearly one-in-five having no formal affiliation.