WORLDWIDE, more than eight-in-ten people identify with a religious group.
A comprehensive demographic study of more than 230 countries and territories conducted by the Pew Research Center’s Forum on Religion & Public Life estimates that there are 5.8 billion religiously affiliated adults and children around the globe, representing 84% of the 2010 world population of 6.9 billion.
The demographic study – based on analysis of more than 2,500 censuses, surveys and population registers – finds 2.2 billion Christians (32% of the world’s population), 1.6 billion Muslims (23%), 1 billion Hindus (15%), nearly 500 million Buddhists (7%) and 14 million Jews (0.2%) around the world as of 2010. In addition, more than 400 million people (6%) practice various folk or traditional religions, including African traditional religions, Chinese folk religions, Native American religions and Australian aboriginal religions. An estimated 58 million people – slightly less than 1% of the global population – belong to other religions, including the Baha’i faith, Jainism, Sikhism, Shintoism, Taoism, Tenrikyo, Wicca and Zoroastrianism, to mention just a few.1
The geographic distribution of religious groups varies considerably. Several religious groups are heavily concentrated in the Asia-Pacific region, including the vast majority of Hindus (99%), Buddhists (99%), adherents of folk or traditional religions (90%) and members of other world religions (89%).
Three-quarters of the religiously unaffiliated (76%) also live in the massive and populous Asia- Pacific region. Indeed, the number of religiously unaffiliated people in China alone (about 700 million) is more than twice the total population of the United States.
The Asia-Pacific region also is home to most of the world’s Muslims (62%). About 20% of Muslims live in the Middle East and North Africa, and nearly 16% reside in sub-Saharan Africa.
Of the major religious groups covered in this study, Christians are the most evenly dispersed. Roughly equal numbers of Christians live in Europe (26%), Latin America and the Caribbean (24%) and sub-Saharan Africa (24%).