When compared with other wealthy nations, the U.S. is unique in that a large share of its population prays every day.
Sizable majorities of adults in six European countries with a mandatory tax say they pay it and few say they are likely to opt out.
The church is one of the few major mainline Protestant denominations in the country that currently does not sanction same-sex marriage.
Tuesday is the 210th anniversary of Charles Darwin’s birth. Roughly eight-in-ten U.S. adults say humans have evolved over time.
Conrad Hackett, associate director for research and senior demographer, discusses why we studied the relationship between religion and happiness, health and civic engagement.
Evolution remains a contentious issue. When asked about it, highly religious Americans' responses can vary depending on how the question is asked.
In many countries, actively religious people are more likely than their less-religious peers to describe themselves as very happy.
While Slovakia is majority Catholic, around seven-in-ten Czechs are religiously unaffiliated – the highest share of unaffiliated adults in 34 European countries surveyed.
Within Europe, there are sometimes sizable differences in levels of religious commitment. A new interactive lets you explore these differences.
Central and Eastern Europeans of different ages are about equally likely to say that Christianity, birthplace and ancestry are important to national identity.