Pew Research Center reports and data on the world’s largest religious group.
Christians make up about the same proportion of the world’s population today as they did a century ago, but there has been a momentous shift in where they live.
The Shifting Global Catholic Population
Catholics have made up a remarkably stable share of the global population over the past century, but their geographic distribution has shifted significantly during that time.
The Future of World Religions
If current demographic trends persist, Christians will remain steady, Muslims will grow and people with no religion will decline as a share of the world’s population in the coming decades.
Religion in Latin America
Nearly 40% of the world’s Catholics live in Latin America, but many people in the region have converted from Catholicism to Protestantism, while some have left organized religion altogether.
All Publications from this Topic
Concern for Christians in the Middle East helps drive historic meeting between Catholic, Orthodox leaders
A historic event within global Christianity is set to take place Friday as Pope Francis meets Russian Orthodox Patriarch Kirill in Cuba – the first-ever meeting between the leaders of the Catholic and Russian Orthodox churches since the Orthodox tradition broke away from Catholicism nearly 1,000 years ago.
A snapshot of Catholics in Mexico, Pope Francis’ next stop
Mexico is home to not only the largest Spanish-speaking population in the world, but one of the biggest Catholic populations, too.
Where Christian churches, other religions stand on gay marriage
In the last two decades, several religious groups have moved to allow same-sex couples to marry within their traditions.
5 facts about Christmas in America
Just in time for the holidays, here are five facts about Christmas in America and how people celebrate.
Many Millennials see Christmas as more cultural than religious holiday
Millennials are less religious than older Americans and less likely to identify with a religious group, and those traits are reflected in the way they celebrate Christmas.
Most U.S. Christian groups grow more accepting of homosexuality
Acceptance of homosexuality is rising across the broad spectrum of American Christianity, including among members of churches that strongly oppose homosexual relationships as sinful.
Religious groups’ policies on transgender members vary widely
Religious institutions are starting to formally address the participation of transgender people in their congregations, much as they have with the issue of accepting homosexuals.
In Africa, Pope Francis will find religious vibrancy and violence
The three countries on the pope’s itinerary — Uganda, Kenya and the Central African Republic — all have sizable Catholic populations. But they also have seen violent clashes in recent years.
Church involvement varies widely among U.S. Christians
Some of the largest Christian denominations in the U.S. have relatively low levels of involvement among their members.
Americans’ faith in God may be eroding
The vast majority of Americans still believe in God, but there are strong signs that many are less certain about this belief than in years past.