Why Do Some Americans Leave Their Religion While Others Stay?
A majority of adults still identify with their childhood religion, but 35% don’t. Read about when and why Americans may switch faiths or stay.
Religion
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Striking findings from 2025
Here’s a look back at 2025 through 12 of our most striking research findings.
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Religion Holds Steady in America
Analysis of our polls and other data shows no clear evidence of a religious revival among young adults. Read more about religiousness by age and gender.
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Many religions are heavily concentrated in a few countries
Half of the world’s population lives in just seven countries. But some of the world’s religious groups are even more concentrated than that.
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Key facts about Black Americans and religion
Most Black Americans are Christian, though the share who identify as such has fallen since 2007.
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Religiousness varies a lot by race among Democrats, relatively little among Republicans
In general, U.S. adults who are Republican or lean toward the GOP are more religious than Democrats and Democratic leaners.
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If the U.S. had 100 people: Charting Americans’ religious affiliations
If the U.S. had 100 people, 62 would be Christians, including 40 Protestants, 19 Catholics, two Latter-day Saints and two who identify with other Christian groups.
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5 facts about religion in Nigeria
As of 2020, Muslims made up a majority of Nigeria’s total population (56.1%), while Christians made up 43.4%.
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Growing Share of U.S. Adults Say Religion Is Gaining Influence in American Life
Americans’ views of religion’s role in society have grown more positive in recent years. But many feel their religious beliefs conflict with the mainstream.
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How spiritual is your state?
Find out how adults in your state compare with other Americans on measures of spirituality, such as belief in souls, spiritual presences, an afterlife and more.
