Religion around the world

Most of the inhabitants of the earth are religious, professing some form of religion.

The largest (by the number of followers) religion of the world is Christianity; throughout the 20th century, the share of Christians in the total population of the Earth remained practically unchanged, remaining equal to 33%. Islam is considered the second world religion (23% of the world’s population). The number of non-believers and atheists is highly controversial and is estimated by various studies at 11-16% of the world’s population. Hindus (14-15%), Buddhists (7%) and supporters of traditional religions make up a significant share of the world’s population.