By 2060, more than four-in-ten Christians and 27% of Muslims around the world will call sub-Saharan Africa home.
Though the percentage of religiously "nones" in America has risen, the global share of religiously unaffiliated people is expected to fall in coming decades.
Though Christians make up nearly a third of Earth’s 7.3 billion people, the number of Christians in Europe is in decline.
In sub-Saharan Africa, Muslim adults are more than twice as likely as Christians to have no formal schooling.
About 57,800 minors in the U.S. ages 15 to 17 are married – or five of every 1,000 in that age group. But the rate of child marriage varies widely between states.
Women are more likely than men to say they attend worship services regularly. But this gap in church attendance has been narrowing in recent decades, as the share of women attending weekly has declined.