3. Christian migrants around the world
Christians are the largest religious group among migrants. Most Christian migrants live in Europe or North America.
Numbers, Facts and Trends Shaping Your World
Read our research on:
Search results for: “christianism”
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12. Religion in the Middle East and North Africa
Every religious group grew in count in the Middle East and North Africa – a Muslim-majority region – between 2010 and 2020.
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Globally, 1 in 10 adults under 55 have left their childhood religion
The share of people who retain their childhood religious identity in adulthood varies across religious categories.
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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.
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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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15. Why we revised our estimates for 2010
Read how Pew Research Center revised our estimates to reflect methodological advances, incorporate newly available data, and allow comparison across measures in this report.
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22. Religion’s role in public life
Read more about Americans’ views about religious organizations and their effects on society, as well as the separation of church and state. Religious Landscape Study by Pew Research Center.
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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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1. Religious identity
Christians’ share among U.S. adults has fallen across demographic groups since 2007, but there has been overall stability in religious makeup since 2020. Religious Landscape Study by Pew Research Center.
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9. Religion in Asia and the Pacific
Hindus, Muslims and the unaffiliated each make up about a quarter or more of the Asia-Pacific population. These groups all grew there from 2010-2020.