Major world traditions by rough share
Why religion data is difficult
Religion can mean formal membership, self-identification, cultural belonging, practice, belief or legal registration. Different countries and surveys measure different things, so small differences between sources should not be overinterpreted.
Regional patterns
Christianity is widely distributed across Europe, the Americas, sub-Saharan Africa and parts of Oceania. Islam is especially prominent across North Africa, West Asia, Central Asia, South Asia and Southeast Asia. Hindu traditions are concentrated in South Asia, while Buddhism has deep roots across East, Southeast and parts of South Asia.
Historical impact
Religious traditions preserved texts, built institutions, inspired art and architecture, shaped education and law, supported political legitimacy and motivated reform movements. They also became part of conflicts, exclusion and imperial systems. Both sides belong to a serious historical account.
Sources
Related topics
FAQ
Are these religion numbers exact?
No. They are rounded estimates based on surveys, censuses and demographic models.
Does affiliation mean practice?
Not necessarily. Many datasets count identity or background, not weekly practice.