The following is a list of world Religions/theological ideas based on followers: 1. * Christianity 2.1 billion 2. * Islam 1.3 billion 3. * Non-Adherent (Secular/Atheist/Agnostic) 1.1 billion 4. * Hinduism 900 million 5. * Chinese Traditional 394 million 6. * Buddhism 376 million 7. * Pagan 300 million 8. * African Traditional 100 million 9. * Sikhism 23 million 10. * Juche 19 million 11. * Spiritism 15 million 12. * Judaism 14 million 13. * Bahá'í Faith 7 million 14. * Jehovah's Witnesses 6.5 million 15. * Jainism 4.2 million 16. * Shinto 4 million 17. * Cao Dai 4 million 18. * Zoroastrianism 2.6 million 19. * Tenrikyo 2 million 20. * Rastafari movement 1,000,000 21. * Neo-Paganism 1 mill