List of religions with at least 1 million adherents

This post is a list of religions with at least 1 million adherents as of 2020. There are 13 religions listed below. Data source: Wikipedia

1. Christianity - 2.3 billion
2. Islam - 1.9 billion
3. Hinduism - 1.2 billion
4. Nonreligious/Agnostic/Atheist - 1.1 billion
5. Buddhism - 506 million
6. Chinese traditional religion - 394 million
7. Sikhism - 23 million
8. Judaism - 14 million
9. Baha'i - 7 million
10. Jainism - 4 million
11. Shinto - 4 million
12. Caodaism - 4 million
13. Tenrikyo - 2 million