There are important differences in educational attainment among religious groups living in the same region -- or even the same country.
Jews are more highly educated than any other major religious group around the world, while Muslims and Hindus tend to have the fewest years of formal schooling. But all religious groups are making gains, particularly among women.
In the last two decades, several religious groups have moved to allow same-sex couples to marry within their traditions.
There has been a modest drop in overall rates of belief in God and participation in religious practices. But religiously affiliated Americans are as observant as before.
The Christian share of the U.S. population is declining, while the share of Americans who do not identify with any organized religion is growing. These changes affect all regions in the country and many demographic groups.
Explore the geographic distribution and demographics of America's major religious groups.
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.
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.
Pope Francis will travel to South Korea next week for Asian Youth Day, making his third international trip as pontiff. Here are six facts about Christianity in South Korea.