See the latest Pew Research Center reports and data on the world’s largest religious group.

ReligionMay 12, 2015

America’s Changing Religious Landscape

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.

2015RLSpromo140x140 (1)
ReligionMay 12, 2015

Religious Landscape Study

Explore the geographic distribution and demographics of America’s major religious groups.

ReligionApril 23, 2015

Why Muslims are the world’s fastest-growing religious group

By 2050, they are expected to make up about three-in-ten of the world’s people, owing in part to relatively high fertility and low median age.

ReligionApril 15, 2015

Europe projected to retain its Christian majority, but religious minorities will grow

The number of Christians in Europe is forecast to drop by about 100 million by 2050, while the share of Muslims and smaller religious minorities will increase.

ReligionApril 14, 2015

Muslims expected to surpass Jews as second-largest U.S. religious group

If current demographic trends hold, by 2050, Muslims are projected to be more numerous in the U.S. than people who identify as Jewish on the basis of religion.

ReligionApril 7, 2015

Christianity poised to continue its shift from Europe to Africa

The share of the world’s Christians in Europe will continue to decline while the percentage in sub-Saharan Africa will increase dramatically.

ReligionApril 2, 2015

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.

PF_15.04.02_Projections_promo_table140x140
ReligionApril 2, 2015

Religious Composition by Country, 2010-2050

The religious profile of the world is rapidly changing, driven primarily by differences in fertility rates and the size of youth populations among the world’s major religions, as well as by people switching faiths. This table details the estimated religious composition of 198 countries and territories for 2010 to 2050.

ReligionApril 2, 2015

7 key changes in the global religious landscape

What will the world’s religious landscape look like a few decades from now?

ReligionMarch 13, 2015

Pope Francis’ popularity extends beyond Catholics

Seven-in-ten Americans rate him favorably, including two-thirds of those with no religious affiliation, a Pew Research Center poll finds.