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.
Numbers, Facts and Trends Shaping Your World
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Muslim Americans share political attitudes with both the Democratic and Republican parties
Around half of Muslim adults (53%) identify with or lean toward the Democratic Party, while 42% identity with or lean toward the Republican Party.
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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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Support for Christian prayer in U.S. public schools varies widely by state
Just over half of U.S. adults (52%) say they favor allowing public school teachers to lead their classes in prayers that refer to Jesus.
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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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47% of U.S. Adults Have a Personal or Family Connection to Catholicism
Nearly half of U.S. adults are connected to Catholicism. Read about going to Mass, Communion, confession and more.
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Video: How much ‘religious switching’ is there in the U.S.?
35% of U.S. adults no longer identify with the religion in which they were raised – that’s about 90 million people who have changed their religious identities.
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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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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.
