3. Muslim population change
Muslims are the world’s fastest-growing and second-largest religious group. In the Middle East-North Africa region, they make up 94% of the population.
Numbers, Facts and Trends Shaping Your World
Read our research on:
Search results for: “muslim population”
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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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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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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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1. Factors driving religious change, 2010-2020
Read how demographic factors – age composition, life expectancy and fertility rates – and religious switching changed the global religious landscape.
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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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How U.S. Muslims compare with other Americans religiously and demographically
U.S. Muslims tend to be younger and more highly educated than other Americans. But they’re similar to Christians on many religiousness measures.
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5. What role should religion play in Muslim- and Jewish-majority countries?
In a number of countries with sizable Muslim and Jewish populations, we asked Muslim and Jewish adults for their views on religion and governance – specifically, whether religious law should be the official or state law for people who share their religion, and whether their country can be both a democratic country and a Muslim […]
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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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4. Spiritual and religious practices
Some activities, such as prayer, are widespread. Others, such as fasting and lighting incense or candles, vary more by country.
