Religion Adherents Percentage Christianity 2.4 billion[3] 33% Islam 1.8 billion[3] 24.1% Secular[a]/Nonreligious[b]/Agnostic/Atheist 1.2 billion 16% Hinduism 1.15 billion 15% Buddhism 521 million 7% Chinese traditional religion[c] 394 million 5.50% Ethnic religions excluding some in separate categories 300 million 4.19% African traditional religions 100 million[5] 1.40% Sikhism 30 million 0.32% Spiritism 15 million 0.21% Judaism 14.5 million[6] 0.20% Bahá'í 7.0 million 0.10% Jainism 4.2 million 0.06% Shinto 4.0 million 0.06% Cao Dai 4.0 million 0.06% Zoroastrianism 2.6 million 0.04% Tenrikyo 2.0 million 0.02% Neo-Paganism 1.0 million 0.01% Unitarian Universalism 0.8 million 0.01% Rastafari 0.6 million 0.01% total 7.167 billion 100%
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