There are many religious groups around the world that are not presented separately in this report due to their relatively small size and the limitations of national censuses and other data sources.

Muslims are the world’s second-largest religious group and the fastest-growing major religion. They make up the vast majority of the population in the Middle East-North Africa region. In all other ...

(RNS) — A new Pew Research Center study measuring the evolution of the global religious population shows Muslims are the fastest-growing faith group, followed by the religiously unaffiliated. Though ...

Churches closing their doors, mosques with dwindling Friday crowds, and temples turned into museums. Across the globe, ...

In most of the world, countries with religious populations are more likely to have governments that support religion through ...