Christianity | 2.3 | Roman Province of Judea |
Islam | 1.8 | Arabian Peninsula |
Secular*[nonreligious, agnostic, atheist] | 1.2 | Worldwide |
Hinduism | 1.15 | Indian subcontinent |
Buddhism | 0.52 | Indian subcontinent |
Chinese traditional religion*[Confucianism, Taoism] | 0.39 | China |
Ethnic religions excluding some in separate categories | 0.3 | Varied |
African traditional religions | 0.1 | Africa |
Sikhism | 0.03 | Indian subcontinent |
Spiritism | 0.015 | France |
Judaism | 0.014 | Ancient Israel |
Baháʼí | 0.007 | Persia (Iran) |
Jainism | 0.004 | Indian subcontinent |
Shinto | 0.004 | Japan |
Cao Dai | 0.004 | Vietnam |
Zoroastrianism | 0.0001 | Ancient Persia (Iran) |
Tenrikyo | 0.0001 | Japan |