World Religions Population 2024. Explore the religious composition of countries worldwide by major religions, such as christianity, islam, buddhism, hinduism, and judaism. A report by pew research predicts that muslims will surpass christians by 2100 and buddhists will remain flat.
There are about 1.2 billion. According to a 2020 census, buddhists make up about 31% of the population, christians 19% and muslims 15%, while about a fifth of the population claimed no.