| Religion | Adherents | Percentage |
| Christianity | 2.3 Billion | 29.1% |
| Islam | 2.0 Billion | 25.3% |
| Agnostic | 1.9 Billion | 24.0% |
| Hinduism | 1.2 Billion | 15.2% |
| Buddhism | 300 Million | 3.8% |
| Other Religions | 200 Million | 2.5% |
| Judaism | 16.8 Million | 0.2% |
* Total may add up to more than 100% due to rounding
Sources: “How the Global Religious Landscape Changed From 2010 to 2020,” Pew Research Center, (June 9, 2025).