Worlds Major Religions

The table below lists religions classified by philosophy; however, religious philosophy is not always the determining factor in local practice. Please note that this table includes heterodox movements as adherents to their larger philosophical category, although this may be disputed by others within that category. For example, Cao Đài is listed because it claims to be a separate category from Buddhism, while Hoa Hao is not, even though they are similar new religious movements.
The population numbers below are computed by a combination of census reports, random surveys (in countries where religion data is not collected in census, for example USA or France), and self-reported attendance numbers, but results can vary widely depending on the way questions are phrased, the definitions of religion used and the bias of the agencies or organizations conducting the survey. Informal or unorganized religions are especially difficult to count. Some organizations may wildly inflate their numbers.

Religious category	Number of followers (in millions)		Cultural tradition	Main regions covered
Christianity	2,000–2,200	[14]	Abrahamic religions	Predominant in the Western world (Europe, the Americas, Oceania), Sub-Saharan Africa, the Philippines, and East Timor in Southeast Asia. Minorities worldwide, see Christianity by country.
Islam	1,570–1,650	[15] [16]	Abrahamic religions	Middle East, Northern Africa, Central Asia, South Asia, Western Africa, Malay Archipelago with large population centers existing in Eastern Africa, Balkan Peninsula, Russia and China.[17]
No religion	1,100	[18]	Secularism	Predominant in the Western world. Minorities worldwide, see Irreligion by country.
Hinduism	828–1,000	[19]	Indian religions	South Asia, Bali, Mauritius, Fiji, Guyana, Trinidad and Tobago, Suriname, and among the overseas Indian communities.
Buddhism	400–1,500	[20] [21] [22]	Indian religions	South Asia, East Asia, Southeast Asia, Australia and some regions of Russia.
Folk religions	600-3,000	[nb 1]	Folk religions	Africa, Asia, Americas
Chinese folk religions (including Taoism and Confucianism)	400-1,000	[23] [nb 1]	Chinese Religions	East Asia, Vietnam, Singapore and Malaysia.
Shinto	27–65	[24]	Japanese Religions	Japan
Sikhism	24–28	[25] [20]	Indian religions	Indian subcontinent, Australasia, Northern America, Southeast Asia, the United Kingdom and Western Europe.
Judaism	14–18	[20]	Abrahamic religions	Israel and the worldwide Jewish diaspora (mostly North America, South America, Europe, and Asia).
Jainism	8–12	[nb 2]	Indian religions	India, and East Africa.
Bahá'í Faith	7.6–7.9	[26] [27]	Abrahamic religions[nb 3]	Noted for being dispersed worldwide[28][29] but the top ten populations (amounting to about 60% of the Bahá'í World Faith adherents) are (in order of size of community) India, United States, Vietnam, Kenya, DR of the Congo, Philippines, Zambia, South Africa, Iran, Bolivia[30]
Cao Dai	1–3	[31]	Vietnamese Religions	Vietnam.
Cheondoism	3	[32]	Korean Religions	North and South Korea
Tenrikyo	2	[33]	Japanese Religions	Japan, Brazil.
Wicca	1	[34]	New Religious Movements	United States, Australia, Europe, Canada.
Church of World Messianity	1	[35]	Japanese Religions	Japan, Brazil
Seicho-no-Ie	0.8	[33]	Japanese Religions	Japan, Brazil.
Rastafari movement	0.7	[36]	New religious movements, Abrahamic religions	Jamaica, Caribbean, Africa.
Unitarian Universalism	0.63	[37]	New religious movements	United States, Canada, Europe.