Islam was the world’s fastest-growing religion from 2010 to 2020
From 2010 to 2020, the number of Muslims increased by 347 million people to 2.0 billion people.
Numbers, Facts and Trends Shaping Your World
From 2010 to 2020, the number of Muslims increased by 347 million people to 2.0 billion people.
Pew Research Center has tracked trends in American religion since 2007 via the Religious Landscape Study (RLS) and since 2020 using the annual National Public Opinion Reference Survey (NPORS). But the RLS and NPORS are hardly the only sources of survey data on religion in the United States. Among others, the General Social Survey (GSS) […]
After years of decline, the U.S. Christian share now shows signs of leveling off. The new Religious Landscape Study explores trends in identity, beliefs and practices.
Pew Research Center is a subsidiary of The Pew Charitable Trusts, its primary funder. This report is a collaborative effort based on the input and analysis of the following individuals. Find related reports online at pewresearch.org/religion. Primary researcher Chip Rotolo, Research Associate Research team Alan Cooperman, Director, Religion ResearchGregory A. Smith, Senior Associate Director, Religion […]
Find out how adults in your state compare with other Americans on measures of spirituality, such as belief in souls, spiritual presences, an afterlife and more.
This report is a collaborative effort based on the input and analysis of the following individuals. Maria Smerkovich, Research AssociateKirsten Lesage, Research AssociateJulia Armeli, Research Assistant Janakee Chavda, Associate Digital ProducerLaura Clancy, Research AnalystAlan Cooperman, Director, Religion ResearchShifra Dayak, Editorial SpecialistJonathan Evans, Senior ResearcherMoira Fagan, Senior ResearcherSneha Gubbala, Research AnalystSofia Hernandez Ramones, Research AnalystCarolyn Lau, […]
Find out what percentage of adults have joined or left Hinduism, or remained Hindu since childhood, in four countries.
Six-in-ten converts to Catholicism were raised Protestant. Converts tend to be more Republican than current Catholics raised in the faith.
About half of U.S. adults listen to religious programming, including music and podcasts. Read about who tunes in, what they listen to and why, based on a 2025 survey.
Majorities say more women in the workforce is a good thing. Read more about religious groups’ views on gender in the labor force, and stay-at-home parents. Religious Landscape Study by Pew Research Center.
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