World Population 2024 Religion Wise. The only world religion forecasted to experience a decline in adherents up until 2050 is buddhism, due to demographic developments such as aging populations and low. About pew research center pew research center is a nonpartisan, nonadvocacy fact tank that informs the public about the issues, attitudes and trends shaping the world.it does not take policy positions.

India, labeled as the world’s spiritual homeland, perhaps due to its rich religious history including the birth of major world religions like hinduism, buddhism, jainism, and sikhism, leads the data set with an estimated religious. As of 2023, christianity was by far the world’s largest religion, with an estimated 2.38 billion adherents, nearly a third (31.1%) of all 7.66 billion people on earth.