The share of the world's Christians in Europe will continue to decline while the percentage in sub-Saharan Africa will increase dramatically.
Explore Religion and Religious Change Around the World
What will the world’s religious landscape look like a few decades from now?
As of 2010, nearly a third of the world's population identified as Christian. But if demographic trends persist, Islam will close the gap by the middle of the 21st century.
Explore the estimated religious composition of 198 countries and territories for 2010 to 2050.
Tens of millions of Latin Americans have left the Roman Catholic Church in recent decades and embraced Pentecostal Christianity.
Half of the world’s population lives in just six countries. But in many cases, the world’s major religious groups are even more concentrated.
The Yazidis who have been fleeing the advance of the Sunni militant group ISIS in Iraq are a religious group of uncertain numbers and a long history of persecution.
Pope Francis is scheduled to visit Jordan, the West Bank and Israel this weekend, a region where the Christian population is in flux and where Francis has expressed concern about their well-being.
How much do you know about the world’s Christian population? Which country has the largest Catholic population, and which has the largest number of Protestants? W have a short, ten-question quiz on the global Christian population to test your knowledge.