Religion

Great Unchurching

Religion is gradually becoming less common in many Western, high-income countries. Why is this decrease happening worldwide?

By Nikhat Sattar | August 2026

The common perception that the world, especially in Western countries, is moving away from religion is largely valid, though the phenomenon is complex and varied. Many churches in the US, for example, are being converted to buildings for other uses as the presence of worshippers has dwindled. In North America, Europe and some parts of East Asia, organised religion has fewer people than, say, a hundred years ago. The shift away from religion is not, however, observed in sub-Saharan Africa and the Middle East, where religious populations continue to grow.

The Pew Research Centre has published a report analysing shifts in religion across countries and highlighting certain trends. Firstly, there is increased secularisation in many countries, and the number of people affiliated with any religion has declined significantly in these places. This trend is obvious in the US, Australia and Europe. The religiously unaffiliated people are now commonly called “nones”. It must be noted that this process has been observed in modern, economically developed countries. Materialism and an individualistic preference over the collective are factors that cannot be overlooked when analysing the reasons for moving away from religious beliefs and practices.

The second trend that has been demonstrated through research is that there is a generational shift as younger adults are more likely to give up the religion of their parents, opting for atheism or agnosticism instead. Thus, the religiously affiliated are mainly older people.

The third trend concerns global population growth. While the share of the population that is non-religious is growing in the West, it will decline as a share of the global population because the world’s most religious countries are also those with the highest population growth, high fertility, and younger populations. Non-religious populations are associated with older ages and lower birth rates, as in Europe, China and Japan.

New research by a group of international scholars describes the shift away from religion in three stages of secularisation: early, middle and late.
Using data from the Pew Centre’s surveys in 111 countries and territories, the research says that this process is affecting almost all countries, including those in which Christianity, Islam, Buddhism or Hinduism is the largest religion.

According to the authors, religion generally declines between generations in three steps:
1. People participate in worship services and rituals less often.
2. The importance of religion declines in their personal lives.
3. Identification with religion becomes less common.

In this three-step sequence, generations first give up aspects of religion that are time-consuming and require resources, such as travel expenses or almsgiving. Shedding religious identity comes much later since it is not as difficult and can be left to a later stage.

Many African and Middle Eastern countries are currently in the early stages. For example, in Senegal, 78% of older adults attend the Friday worship services, but 64% of younger adults are less likely to do so. Despite this, almost all adults in Senegal still identify as Muslims and consider religion very important in their lives.

In the medium stage of secular transition, generations differ in their participation in religious rituals, the importance of religion to the self, and their belonging to a specific religion. In moderately religious countries, all three steps are visible. Adults under 40 attend religious services less frequently than their elders, are less likely to have religion as an important aspect of their lives, and are less likely to identify with any religion. This is the case in the U.S. and many other countries in the Americas and Asia.

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