Only one-in-ten Chinese adults formally identify with a religion, but surveys indicate that religion plays a much bigger role in China when the definition is widened to include questions on spirituality, customs and traditional beliefs.
Since the 1990s, large numbers of Americans have left Christianity to join the growing ranks of U.S. adults who describe their religious identity as atheist, agnostic or “nothing in particular.” If recent trends in religious switching continue, Christians could make up less than half of the U.S. population within a few decades.
The Christian share of the U.S. population is declining, while the share of Americans who do not identify with any organized religion is growing. These changes affect all regions in the country and many demographic groups.
Nearly 40% of the world’s Catholics live in Latin America, but many people in the region have converted from Catholicism to Protestantism, while some have left organized religion altogether.
As young Catholics gather in Brazil, awaiting Pope Francis’ visit in celebration of World Youth Day, an analysis of census data finds that the share of Brazil’s population that identifies as Catholic has been dropping steadily in recent decades. Over the same period, the percentage of Brazilians who belong to Protestant churches has been rising.
A country-by-country analysis of data from more than 2,500 censuses, surveys and population registers finds that 84% of adults and children around the globe are religiously affiliated. The study also finds that the median age of two major groups – Muslims (23 years) and Hindus (26) – is younger than the world’s overall population (28), while Jews have the highest median age (36).
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