The global Muslim population grew at a significantly faster pace than the rest of the world between 2010 and 2020, making Islam the fastest-growing major religion during the decade, according to a new report released by the Pew Research Center titled “How the Global Religious Landscape Changed From 2010 to 2020.”

During this period, the global Muslim population surged by 347 million, reaching approximately 2.0 billion. This growth outpaced that of every other religious group, solidifying Islam’s position as the second-largest religion globally, following Christianity.

In contrast, the number of Christians grew by 122 million, totaling 2.3 billion by 2020. Notably, Buddhists were the only major group to see a decline in absolute numbers, decreasing by 19 million to 324 million.