Top 10 Countries with Largest Christian Population 1. 🇺🇸 USA – 252.87M 2. 🇧🇷 Brazil – 185.43M 3. 🇲🇽 Mexico – 118.57M 4. 🇵🇭 Philippines – 102.32M 5. 🇷🇺 Russia – 101.9M 6. 🇳🇬 Nigeria – 96.08M 7. 🇨🇩 DR Congo – 81.52M 8. 🇨🇳 China – 72.41M 9. 🇪🇹 Ethiopia – 62.61M 10. 🇩🇪 Germany – 53.19M Source: Pew Research Center