Survey of World Religions: Numbers of Followers

1. Christianity: 2 billion
2. Islam: 1.3 billion
3. Hinduism: 900 million
4. Secular/Nonreligious/Agnostic/Atheist: 850 million
5. Buddhism: 360 million
6. Chinese traditional religion: 225 million
7. primal-indigenous: 150 million
8. African Traditional & Diasporic: 95 million
9. Sikhism: 23 million
10. Juche (the only government-authorized ideology in North Korea): 19 million
11. Spiritism: 14 million
12. Judaism: 14 million
13. Baha'i: 6 million
14. Jainism: 4 million
15. Shinto: 4 million
16. Cao Dai: 3 million
17. Tenrikyo: 2.4 million
18. Neo-Paganism: 1 million
19. Unitarian-Universalism: 800 thousand
20. Scientology: 750 thousand
21. Rastafarianism: 700 thousand
22. Zoroastrianism: 150 thousand

This pie chart represents the overall world-wide percent of followers for each religion.

This information is taken from Adherents.com, with no guarentee from the author that the estimates are accurate.

No The adherent counts presented in the list above are estimates of the number of people who have at least a minimal level of self-identification as adherents of the religion. Levels of participation vary within all groups. These numbers tend toward the high end of reasonable worldwide estimates. Valid arguments can be made for different figures, but if the same criteria are used for all groups, the relative order should be the same. Further details and sources are available below and in the Adherents.com main database.

This listing is not a comprehensive list of all religions, only the "major" ones (as defined below). There are distinct religions other than the ones listed above. But this list accounts for the religions of over 98% of the world's population. Below are listed some religions which are not in this listing (Mandeans, PL Kyodan, Ch'ondogyo, Vodoun, New Age, Seicho-No-Ie, Falun Dafa/Falun Gong, Taoism, Roma), along with explanations for why they do not qualify as major world religions on this list.

This world religions listing is derived from the statistics data in the Adherents.com database. The list was created by the same people who collected and organized this database, in consultation with university professors of comparative religions and scholars from different religions. We invite additional input. The Adherents.com collection of religious adherent statistics now has over 34,000 adherent statistic citations, for over 3,000 different faith groups, covering all countries of the world. This is not an absolutely exhaustive compilation of all such data, but it is by far the largest compilation available on the Internet. Various academic researchers and religious representatives regularly share documented adherent statistics with Adherents.com so that their information can be available in a centralized database.