Western Religions and Cults
The Western world, taken as consisting of Europe, the Americas, Australia-New Zealand, and (in part) South Africa and the Philippines, are predominantly Western Christian: 77.4% in North America (2012), 90% in Latin America (2011), close to 76.2% in Europe (2010), (includes 35% of European Christians who are Eastern Orthodox, especially in Eastern Europe, 76%, not correctly part of "Western religion", 46% of European Christians are Roman Catholic, 18% of European Christians are Protestant), 61.1% in Australia-New Zealand (2011), 79% in South Africa
and 90% in the Philippines.
Most non-Christians in the Western world are irreligious: 22% in Australia, 40% in New Zealand, 18.2% in Europe, 16.4% in the USA, and 16% in Canada (Latin America, South Africa, and the Philippines are more religious). This reflects the tradition of secular humanism that culminated in the 18th-century Age of Enlightenment.
There remains a minority of the order of 5% of the population in the Western world that adheres to non-Western religions, primarily due to recent immigration, but to some extent also due to proselytization, notably conversion to various sects of Buddhism and Hinduism in the context of the New Age movement in the later part of the 20th century.