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
Read our research on:
Search results for: “global islam”
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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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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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Why is Buddhism shrinking worldwide?
The global population of Buddhists shrank by roughly 5% between 2010 and 2020, the sole major religious group to decline.
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3. Median scores for government restrictions and social hostilities stay the same in 2022
In 2022, global median scores on the Center’s Government Restrictions and Social Hostilities Indexes mirrored 2021. But some regions saw change since 2021.
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Which countries have the most – and fewest – public holidays?
Across 190 members of the United Nations we analyzed, the typical country will observe 13 public holidays in 2026.
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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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The number of Christian-majority countries fell between 2010 and 2020
Countries that lost their Christian majorities all saw growing percentages of religiously unaffiliated people.
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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.
