Rank |
Religion |
Adherents |
1 |
Christianity |
2.2 billion |
2 |
Islam |
1.8 billion |
3 |
Secular/Nonreligious/Agnostic/Atheist |
≤1.1 billion |
4 |
Hinduism(world’s oldest religion) |
1 billion |
5 |
Chinese traditional religion |
394 million |
6 |
Buddhism |
376 million |
7 |
Ethnic religionsexcluding some in separate categories |
300 million |
8 |
African traditional religions |
100 million |
9 |
Sikhism |
23 million |
10 |
Juche |
19 million |
11 |
Spiritism |
15 million |
12 |
Judaism |
14 million |
13 |
Bahá'í |
7 million |
14 |
Jainism |
4.2 million |
15 |
Shinto |
4 million |
16 |
Cao Dai |
4 million |
17 |
Zoroastrianism |
2.6 million |
18 |
Tenrikyo |
2 million |
19 |
Neo-Paganism |
1 million |
20 |
Unitarian Universalism |
800,000 |
21 |
Rastafarianism |
600,000 |