Key Takeaways
- Roman Catholics number 1.36 billion, 50% of Christians.
- Eastern Orthodox Christians: 220 million worldwide.
- Anglicans: 85 million members in Anglican Communion.
- 90% of Christians affirm the Trinity as one God in three persons.
- 98% of US Christians believe Jesus rose from the dead bodily.
- 75% of global Christians believe the Bible is the literal word of God.
- The First Council of Nicaea in 325 AD established the Nicene Creed, attended by 318 bishops.
- Constantine the Great converted to Christianity in 312 AD after the Battle of Milvian Bridge.
- The Edict of Milan in 313 AD legalized Christianity in the Roman Empire.
- In 2023, the global Christian population reached 2.63 billion, comprising 31.7% of the world's population.
- Christianity is the largest religion globally, with 2.6 billion adherents as of 2020.
- Between 2010 and 2020, the Christian population grew by 1.17%, slower than the global population growth of 1.26%.
- Christian charities provide 40% of global humanitarian aid.
- Christians operate 70% of leprosy hospitals worldwide.
- 34% of US hospitals are faith-based, mostly Christian.
Christianity counts 2.63 billion believers worldwide, with Catholics the largest group at about half.
Related reading
Denominational Data
Denominational Data Interpretation
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Doctrinal Beliefs
Doctrinal Beliefs Interpretation
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Historical Events
Historical Events Interpretation
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Population Statistics
Population Statistics Interpretation
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How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Helena Kowalczyk. (2026, February 13). Christianity Statistics. Gitnux. https://gitnux.org/christianity-statistics
Helena Kowalczyk. "Christianity Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/christianity-statistics.
Helena Kowalczyk. 2026. "Christianity Statistics." Gitnux. https://gitnux.org/christianity-statistics.
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