In response to Barbarajean and chutney:
The largest religious groups in the world are:
- Christianity (including catholic, protestant, orthodox, pentecostal, evangelical etc): 2.1 billion adherents (31.5% of the worlds population)
- Islam (including Shi'ite, Sunni etc): 1.3 billion adherents (19.5%)
- Non-Religious (including secular, agnostic, atheist, those not affiliated with any formal religion etc): 1.1 billion (16.5%)
- Hinduism : 900 million adherents (13.5%)
- Traditional indigenous religions (including African tribal and diasporic): 400 million (6.0%)
- Chinese traditional religions (including Taoism and Confucianism, and
traditional nonscriptural religious observance.
: 394 million adherents (5.9%)
- Buddhism: 376 million adherents (5.6%)
- Sikhism: 23 million (0.34%)
- Judaism: 14 million (0.21%)
Other religions account for 60 million people (0.91%).
It is important to note that definitions of religions and adherence vary and religious statistics are influenced by many factors including official government position and perceived benefits / detriments of belonging to a particular religion.
For information on the religions in each country see the religions page in the religion category. |