Islam was the world’s fastest growing religion from 2010 to 2020
From 2010 to 2020, the number of Muslims increased by 347 million people to 2.0 billion people.
Numbers, Facts and Trends Shaping Your World
Religious Demographics
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How the Global Religious Landscape Changed From 2010 to 2020
Christians remain the largest religious group, and Muslims grew the fastest from 2010 to 2020. Read how the global share of Buddhists, Hindus, Jews and the religiously unaffiliated changed.
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Religious Composition by Country, 2010-2020
Find how many people identify with each religious group and what percent each made up in 201 countries and territories, and by region, in 2010 and 2020.
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Believing in Spirits and Life After Death Is Common Around the World
Belief in an afterlife, God and spirits in nature is widespread globally. Older adults are more likely than younger adults to believe in God.
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4 facts about religious switching within Judaism in Israel
About one-fifth of Israeli Jews (22%) have switched from one Jewish group to another since childhood.
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Around the World, Many People Are Leaving Their Childhood Religions
In many places surveyed, 20% or more of all adults have left their childhood religious group. Christianity and Buddhism have had especially large losses.
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10 facts about U.S. Catholics
Catholics are one of the largest religious groups in the United States, outnumbering any single Protestant denomination.
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Religious Landscape Study: Database
The Religious Landscape Study is a comprehensive survey of more than 35,000 Americans’ religious identities, beliefs and practices that’s been conducted in 2007, 2014 and 2023-24. Pew Research Center.
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Decline of Christianity in the U.S. Has Slowed, May Have Leveled Off
After years of decline, the U.S. Christian share now shows signs of leveling off. The new Religious Landscape Study explores trends in identity, beliefs and practices.
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Comparing Levels of Religious Nationalism Around the World
We asked people in three dozen countries how they see religion’s role in society, government and national identity.
