Demographic StudyApril 2, 2015

The Future of World Religions: Population Growth Projections, 2010-2050

As of 2010, nearly a third of the world’s population identified as Christian. But if demographic trends persist, Islam will close the gap by the middle of the 21st century.

DatabaseApril 2, 2015

Religious Composition by Country, 2010-2050

Explore the estimated religious composition of 198 countries and territories for 2010 to 2050.

Multi-section reportsOctober 1, 2013

A Portrait of Jewish Americans

American Jews overwhelmingly say they are proud to be Jewish and have a strong sense of belonging to the Jewish people, but their identity is also changing: 22% of American Jews now say they have no religion.

Data VisualizationOctober 1, 2013

Calculate the Size of the U.S. Jewish Population

Polling and AnalysisMay 17, 2013

The Religious Affiliation of U.S. Immigrants: Majority Christian, Rising Share of Other Faiths

A Pew Research Center report looks at how the religious makeup of legal immigrants to the U.S. has changed over the past 20 years. While Christians continue to make up a majority of new legal permanent residents, a growing share belong to other faiths

Demographic StudyDecember 18, 2012

The Global Religious Landscape

A country-by-country analysis of data from more than 2,500 censuses, surveys and population registers finds that 84% of adults and children around the globe are religiously affiliated. The study also finds that the median age of two major groups – Muslims (23 years) and Hindus (26) – is younger than the world’s overall population (28), while Jews have the highest median age (36).

Multi-section reportsOctober 9, 2012

“Nones” on the Rise

The number of Americans who do not identify with any religion continues to grow at a rapid pace. One-fifth of the U.S. public – and a third of adults under 30 – are religiously unaffiliated today, the highest percentages ever in Pew Research Center polling.

InteractivesDecember 19, 2011

Quiz: How much do you know about Christianity around the world?

A comprehensive demographic study finds that there are 2.18 billion Christians of all ages around the world, representing nearly a third of the estimated 2010 global population of 6.9 billion. Christians are also geographically widespread, and no single region can indisputably claim to be the center of global Christianity.

InteractivesDecember 19, 2011

Map: Global Christianity

A comprehensive demographic study finds that there are 2.18 billion Christians of all ages around the world, representing nearly a third of the estimated 2010 global population of 6.9 billion. Christians are also geographically widespread, and no single region can indisputably claim to be the center of global Christianity.

Demographic StudyDecember 19, 2011

Global Christianity – A Report on the Size and Distribution of the World’s Christian Population

A comprehensive demographic study finds that there are 2.18 billion Christians of all ages around the world, representing nearly a third of the estimated 2010 global population of 6.9 billion. Christians are also geographically widespread, and no single region can indisputably claim to be the center of global Christianity.