See the latest Pew Research Center reports and data on the world’s largest religious group.
Why Muslims are the world’s fastest-growing religious group
While the world’s population is projected to grow 32% in the coming decades, the number of Muslims is expected to increase by 70% – from 1.8 billion in 2015 to nearly 3 billion in 2060.
Christians remain world’s largest religious group, but they are declining in Europe
Though Christians make up nearly a third of Earth’s 7.3 billion people, the number of Christians in Europe is in decline.
The Changing Global Religious Landscape
More babies were born to Christian mothers than to members of any other religion in recent years. Less than 20 years from now, however, the number of babies born to Muslims is expected to modestly exceed births to Christians.
Key findings about Puerto Rico
To mark the 100th anniversary of the U.S. government granting American citizenship to the residents of Puerto Rico, here are key facts about the territory.
Majority of states have all-Christian congressional delegations
The vast majority of the nation’s federal lawmakers (91%) describe themselves as Christians, compared with 71% of U.S. adults who say the same.
Most white evangelicals approve of Trump travel prohibition and express concerns about extremism
While most Americans disapprove of Donald Trump’s recent refugee policy, there is a sizable divide on the issue among major religious groups.
Americans Express Increasingly Warm Feelings Toward Religious Groups
Americans generally express more positive feelings toward various religious groups today than they did just a few years ago.
Most refugees who enter the U.S. as religious minorities are Christians
A little over a third of the refugees admitted into the U.S. in fiscal 2016 were religious minorities in their home countries. Of those, 61% were Christians and 22% were Muslims.
Almost all U.S. presidents, including Trump, have been Christians
Most of the U.S. presidents have been openly religious, with many belonging to some of the country’s most prominent Protestant denominations.
6 facts about faith and the inauguration
The trappings of religion have long been part of U.S. presidential inaugurations. Here are six facts on the role faith has played in inaugurations.