An estimated 405 million people – or about 6% of the world’s population – were adherents of folk or traditional religions in 2010, and that number is expected to grow to 450 million by 2050. This ...

In 2010, 0.8% of the world’s population belonged to religious groups not classified elsewhere in this report. By 2050, adherents of other religions are expected to decline slightly as a share of the ...