According to a Pew Research Center study titled “The Future of World Religions,” Islam is projected to become the most followed religion globally by 2050. However, declines in Muslim populations are expected in certain regions. In the Asia-Pacific region, where Muslims accounted for 61.7% of the population in 2010, this figure could drop to 52.8% by 2050. This decline may be attributed to various demographic factors, including aging populations and lower birth rates in some areas.

The same study highlights that Hinduism will see a 34% population increase, becoming the world’s third-largest religion with 1.4 billion followers by 2050. India, the heartland of Hinduism, is also set to surpass Indonesia as the country with the largest Muslim population. By 2050, India’s Muslim population is estimated to exceed 310 million, making up 18% of its total population, while Hindus will constitute about 77%. These shifts indicate significant religious and demographic transformations, particularly in countries like India, shaping global cultural and social dynamics in the coming decades.