Is religion declining? 1 in 4 worldwide now non-religious, becomes third-largest group as Christianity falls

Nearly one in four people worldwide now identify with no religion, according to a sweeping global study covering 201 countries. The religiously unaffiliated grew by 270 million between 2010 and 2020, reaching 1.9 billion, driven largely by disaffiliation from Christianity. While Christians remain the largest group, only Muslims and the unaffiliated increased their global population share.

PNSPNS
Feb 15, 2026 - 19:27
 0
Is religion declining? 1 in 4 worldwide now non-religious, becomes third-largest group as Christianity falls
Nearly one in four people worldwide now identify with no religion, according to a sweeping global study covering 201 countries. The religiously unaffiliated grew by 270 million between 2010 and 2020, reaching 1.9 billion, driven largely by disaffiliation from Christianity. While Christians remain the largest group, only Muslims and the unaffiliated increased their global population share.

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