Islam Gains Ground Globally as Christian Share Shrinks
- The Pew Research Center released a study on June 9, 2025, analyzing global religious population changes between 2010 and 2020.
- The study found that Islam grew fastest due to high birth rates, migration, and religious switching, while Christianity's global share declined.
- Christianity remained the largest religion with 2.3 billion adherents in 2020, but its population share fell by 1.8 percentage points to 28.8%.
- The Muslim population rose by 347 million to 2 billion worldwide, increasing from 24% to 25.6% of the global population and expanding sharply in North America and Africa.
- These shifts suggest ongoing demographic and migration influences reshape religious compositions, with Islam's growth outpacing others and the religiously unaffiliated also increasing significantly.
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The Pew Research Center reported that Muslims are the fastest-growing religious group in the world, increasing by approximately 347 million people between 2010 and 2020.
Population of Muslims growing the fastest in the world, share of Hindus declining: Pew Research
The Muslim population grew by 347 million, which is more than the combined increase in the populations of all other religions. The study shows that one-third of Muslims live in the three countries of India, Pakistan and Indonesia.
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- 53% of the sources lean Right
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