The amount of people in the U.S. who identify as Christian has decreased in the last 10 years, as the amount of people who are unaffiliated with any religion has increased by nearly the same amount, according to data released Tuesday by Pew Research Center.
According to the study, 75% of Americans identified as Christian in 2011—in 2021, that number shrunk to 63%, a 12% decrease.
Ten years ago, roughly 18% of Americans were not affiliated with any religion, identifying as agnostic, atheist or “nothing in particular”—that number grew to 29% in 2021, an 11% increase.
Protestants experienced the largest decrease: While 51% of U.S. adults identified with the Christian denomination in 2011, only 40% did in 2021, an 11% drop.