Religions of the world with the most adherents as reported by the World Christian Database.

Complete List

Ranking	Religion	Adherents	Percent
8	Atheists	151,548,030	2.4
12	Bahai's	7,614,998	0.1
6	Buddhists	378,809,103	5.9
5	Chinese Universists	404,922,244	6.3
1	Christians	2,135,782,815	33.1
13	Confucianists	6,470,714	0.1
7	Ethno-Religionists	256,340,652	4.0
3	Hindus	870,047,346	13.5
14	Jains	4,588,432	0.1
10	Jews	15,145,702	0.2
2	Muslims	1,313,983,654	20.4
4	Non-Religious	768,598,424	11.9
15	Shintoists	2,789,098	0.0
9	Sikhs	25,373,879	0.4
11	Spiritists	13,030,538	0.2
15	Taoists	2,733,859	0.0
15	Zoroastrians	2,647,523	0.0

Source

The data presented in QuickLists are from a variety of sources including the U.S. Census Bureau's International Data Base, the U.S. State Department's International Religious Freedom Report, the United Nations Human Development Reports, and others.

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