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List of religious populations


Adherents.com says "Sizes shown are approximate estimates, and are here mainly for the purpose of ordering the groups, not providing a definitive number".

Countries with the greatest proportion of Christians from Christianity by country (as of 2010):

Countries with the greatest proportion of Muslims from Islam by country (as of 2010) (figures excluding foreign workers in parenthesis):

Remarks: Because officially Muslim governments (such as Saudi Arabia,Iran,Sudan,Somalia,Afghanistan,Pakistan and Persian Gulf States) that often forcibly suppress other religious beliefs rule a number of traditionally Islamic countries, the figures for these other religious groups could be higher than reported in those nations. While conversion to Islam is among its most supported tenets, conversion from Islam to another religion is considered to be the sin of apostasy according to the Hadith, and in some countries it is subject to the penalty of death. See Freedom of religion by country and Apostasy in Islam.

Countries with the greatest proportion of people without religion (including agnostics and atheists) from Irreligion by country (as of 2007):


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