Muslims grew by 347 million between 2010 and 2020; Buddhists were the only group to shrink, by 19 million
Source. Pew Research Center, Religious Composition by Country, 2010–2020, rounded counts.
Method and data
Method. Rounded counts as published; change is the 2020 count less the 2010 count.
| Group | People, 2010 | People, 2020 | Change | Share, 2010 (%) | Share, 2020 (%) |
|---|---|---|---|---|---|
| Christians | 2,147,230,000 | 2,268,860,000 | 121,630,000 | 30.6 | 28.8 |
| Muslims | 1,675,800,000 | 2,022,590,000 | 346,790,000 | 23.9 | 25.6 |
| Religiously unaffiliated | 1,635,250,000 | 1,905,360,000 | 270,110,000 | 23.3 | 24.2 |
| Hindus | 1,051,540,000 | 1,177,860,000 | 126,320,000 | 15 | 14.9 |
| Buddhists | 342,750,000 | 324,190,000 | −18,560,000 | 4.9 | 4.1 |
| Jews | 13,910,000 | 14,780,000 | 870,000 | 0.2 | 0.2 |
| Other religions | 154,110,000 | 172,170,000 | 18,060,000 | 2.2 | 2.2 |
