India to Become World's Largest Muslim-Populated Nation by 2030, Indonesia Second

In 2020, Indonesia had the world's largest Muslim population. According to projections by Globalreligiousfutures, the number of Muslims in Indonesia was 229.62 million, representing 10.51% of the world's total Muslim population.

Starting in 2030, Indonesia's position as the country with the largest Muslim population will shift to second place, behind India. The Muslim population in Indonesia is projected to increase to 245.02 million, while India's Muslim population is projected to reach 248.96 million.

Indonesia's Muslim population is projected to further increase to 254.31 million in 2040. At this number, Indonesia's Muslim population will rank third, behind India (282.12 million) and Pakistan (254.67 million). The increase in Muslim populations in India and Pakistan is in line with the high population growth in both countries.

India will remain the country with the largest Muslim population in the world in 2050, with 310.66 million. Pakistan will be second with 273.11 million, followed by Indonesia in third place with 256.82 million. Nigeria will be fourth with 230 million, and Bangladesh fifth with 182.36 million.

The world's Muslim population is estimated to have reached 1.91 billion in 2020. This number is projected to increase to 2.21 billion in 2030, 2.76 billion in 2040, and remain at 2.76 billion in 2050.

For reference, according to the Directorate General of Population and Civil Registration (Dukcapil), the number of Muslims in Indonesia is 236.53 million, or 86.87% of the total population of 272.23 million.