Key Takeaways
- According to a 2021 Ifop poll for La Croix, 51% of French people aged 18-59 declared themselves Catholic, down from 64% in 2010
- In 2019, only 6% of French Catholics attended Mass every Sunday, per a CSA poll commissioned by La Croix
- The French Catholic Church reported 1.3 million baptisms in 2022, a 5% decline from 2018, according to official diocesan statistics aggregated by the Conference of Bishops
- 33% of French adults declared no religion in 2021 Ifop poll, up from 29% in 2010
- 29% of French identify as atheists, 17% as agnostics, totaling 46% non-religious per 2020 Pew
- Among under-25s, 40% are non-religious, compared to 20% over 65, per 2022 Elabe
- A 2021 INSEE survey estimated 8.8% of France's population as Muslim, about 5.7 million people
- Muslims make up 10% of the French population under 25 years old as of 2020, per Ifop poll
- 42% of French Muslims attend mosque weekly, compared to 17% of the general population attending church, per 2019 Ipsos
- France's Jewish population is estimated at 440,000-500,000 in 2023, world's third largest outside Israel
- 55% of French Jews live in Paris region, with 250 synagogues nationwide, per CRIF 2022
- Orthodox Judaism represents 20% of French Jews, up from 10% in 2000 due to immigration, per 2021 survey
- France's 1905 Law on Separation of Church and State banned state funding for religions, enforced strictly since
- 86% of French support laïcité (secularism) as a core value in 2023 Ifop poll, up 5% since 2015
- No religious census in France since 1872, making polls the main source for data, per INSEE policy
Catholicism keeps declining in France while non religious belief rises, especially among younger generations.
Catholicism
Catholicism Interpretation
Irreligion
Irreligion Interpretation
Islam
Islam Interpretation
Minority Religions
Minority Religions Interpretation
Secularism and History
Secularism and History Interpretation
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.
Ryan Townsend. (2026, February 13). French Religion Statistics. Gitnux. https://gitnux.org/french-religion-statistics
Ryan Townsend. "French Religion Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/french-religion-statistics.
Ryan Townsend. 2026. "French Religion Statistics." Gitnux. https://gitnux.org/french-religion-statistics.
Sources & References
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- Reference 59DEFENSEURDESDROITSdefenseurdesdroits.fr
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- Reference 64CODEcode.travail.gouv.fr
code.travail.gouv.fr







