Executive Summary

America encompasses a rich diversity of faith traditions, and “religious churning” is very common. In 2023, PRRI surveyed more than 5,600 adults across the United States about their experiences with religion. This report examines how well major faith traditions retain their members, the reasons people disaffiliate, and the reasons people attend religious services. Additionally, this report considers how atheists and agnostics differ from those who say they are “nothing in particular.” Finally, it analyzes the prevalence of charismatic elements as well as prophecy and prosperity theology in American churches and the role of charismatic Christianity in today’s Republican Party.

“Unaffiliated” is the only major religious category experiencing growth.

  • Around one-quarter of Americans (26%) identify as religiously unaffiliated in 2023, a 5 percentage point increase from 21% in 2013. Nearly one in five Americans (18%) left a religious tradition to become religiously unaffiliated, over one-third of whom were previously Catholic (35%) and mainline/non-evangelical Protestant (35%).
  • While the percentage of Americans who describe themselves as “nothing in particular” is similar to a decade ago (16% in 2013 to 17% in 2023), the numbers of both atheists and agnostics have doubled since 2013 (from […]
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