Washington, D.C. — A new, comprehensive demographic study of more than 230 countries and territories conducted by the Pew Research Center’s Forum on Religion & Public Life finds that more than eight-in-ten people worldwide identify with a religious group. The report 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.

Based on analysis of more than 2,500 censuses, surveys and population registers, the study 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.

At the same time, the new study also finds that roughly one-in-six people around the globe (1.1 billion, or 16%) have no religious affiliation. This makes the unaffiliated the third-largest religious group worldwide, behind Christians and Muslims, and about equal in size to the world’s Catholic population. Surveys indicate that many of the unaffiliated hold some religious or spiritual beliefs (such as belief in God or a universal spirit) even though they do not identify with a particular faith.

These are some of the key findings of “The Global Religious Landscape: A Report on the Size and Distribution of the World’s Major Religious Groups as of 2010.” This effort is part of the Pew-Templeton Global Religious Futures project, which analyzes religious change and its impact on societies around the world. The project is jointly and generously funded by The Pew Charitable Trusts and the John Templeton Foundation.

 

Additional findings include:

Geographic Distribution
• 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%). A plurality of Jews (44%) live in North America, while about four-in-ten (41%) live in the Middle East and North Africa – almost all of them in Israel.

Young and Old
• Some religions have much younger populations, on average, than others. In part, the age differences reflect the geographic distribution of religious groups. Those with a large share of adherents in fast-growing, developing countries tend to have younger populations. Those concentrated in China and in advanced industrial countries, where population growth is slower, tend to be older.

• The median age of two major groups – Muslims (23 years) and Hindus (26) – is younger than the median age of the world’s overall population (28). All the other groups are older than the global median. Christians have a median age of 30, followed by members of other religions (32), adherents of folk or traditional religions (33), the religiously unaffiliated (34) and Buddhists (34). Jews have the highest median age (36), more than a dozen years older than the youngest group, Muslims.

Living as Majorities and Minorities
• Nearly three-quarters (73%) of the world’s people live in countries in which their religious group makes up a majority of the population. Only about a quarter (27%) of all people live as religious minorities. (This figure does not include subgroups of the eight major groups in this study, such as Shia Muslims living in Sunni-majority countries or Catholics living in Protestant-majority countries.)

• Overwhelmingly, Hindus and Christians tend to live in countries where they are in the majority. Most members of the other major religious groups live in countries in which they are in the minority.

The results are based on a country-by-country analysis of data from more than 2,500 censuses, surveys and official population registers that were collected, evaluated and standardized by the staff of the Pew Forum over the past several years. The report includes demographic profiles of eight religious groups and an estimate of the religious composition (breakdown by religion) of each country’s population as of 2010. The full report, including a sortable data table, is available on the Pew Forum’s website.

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The Pew Research Center’s Forum on Religion & Public Life conducts surveys, demographic analyses and other social science research on important aspects of religion and public life in the U.S. and around the world. As part of the Washington-based Pew Research Center, a nonpartisan, nonadvocacy organization, the Pew Forum does not take positions on policy debates or any of the issues it covers.

 

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