Home›Sources›Religious Composition of the World, 2010-2020SourcesReligious Composition of the World, 2010-2020Citation FormatsGeneral ReferenceGeneral Reference Citation TextDivinity Atlas. "Religious Composition of the World, 2010-2020." Accessed August 30, 2026. https://www.divinityatlas.com/sources/religious-composition-of-the-world-2010-2020.Copy General ReferenceAPA StyleAPA Style Citation TextDivinity Atlas. (n.d.). Religious Composition of the World, 2010-2020. Retrieved August 30, 2026, from https://www.divinityatlas.com/sources/religious-composition-of-the-world-2010-2020Copy APA StyleBibTeXBibTeX Citation Text@misc{divinityatlas-religious-composition-of-the-world-2010, author = {Divinity Atlas}, title = {Religious Composition of the World, 2010-2020}, year = {2026}, url = {https://www.divinityatlas.com/sources/religious-composition-of-the-world-2010-2020}, note = {Accessed August 30, 2026} }Copy BibTeXA demographic report from the Pew Research Center, a nonpartisan American research organization, tracking changes in the size of the world's major religious groups between 2010 and 2020, including the rise in the Muslim population share and the size of the religiously unaffiliated population. Pew's established methodology and reputation as a research institution place this at this atlas's middle tier, a reputable secondary source rather than peer reviewed academic scholarship in the strict sense. It is a strong source for global demographic trend figures, stated with whatever caveats Pew itself attaches, such as its own noted uncertainty around figures for China. It is not a source on the religious content or lived experience behind the numbers.FactsCross-Tradition ConnectionsClaims Backed By This Source (966 claims)Comments (0)Reader Challenges (0 open reader challenges)FactsAssessmentReliability TierWell-attested2Established survey research organization with a stated, published methodology (over 2,700 national censuses, surveys and population registers across 201 countries); a reputable secondary demographic source rather than peer reviewed academic scholarship, this atlas's middle tier.NotesWell-attestedMuslims 1.7 billion (2010) to 2.0 billion (2020), 24 to 26 per cent of the world; religiously unaffiliated about 1.9 billion in 2020, with the China caveat stated in the entry.CitationAuthorWell-attestedPew Research CenterPublisherWell-attestedPew Research CenterPublication YearWell-attested2025URLWell-attestedhttps://www.pewresearch.org/religion/2025/06/09/how-the-global-religious-landscape-changed-from-2010-to-2020/Source TypeWell-attestedreferenceCross-Tradition ConnectionsAssociated WithChina, Countries Well-attested This source names China directly: "noted uncertainty around figures for China."Source Religious Composition of the World, 2010-2020Pew Research Centertier 2Global, Continents Well-attested This source names Global directly: "It is a strong source for global demographic trend figures, stated with whatever caveats Pew itself attaches, such as its own noted uncertainty around figures for China."Source Religious Composition of the World, 2010-2020Pew Research Centertier 2Authored ByPew Research Center, Organizations Well-attested Source Pew Research Center: Our HistoryPew Research Centertier 2Claims Backed By This Source (966 claims)This source backs 966 claims across the atlas. As facts: 438 well-attested, 4 scholarly debate, 3 open question. As cited relationships: 246 holds, 37 connected. Plus 238 entities citing it as a general reference with no single fact or relationship attached.Disposition By TopicCountries, 633 claims: 189 well-attested, 4 scholarly debate, 3 open question, 243 holds, 194 general references.Articles, 269 claims: 210 well-attested, 29 connected, 30 general references.Open Questions, 32 claims: 21 well-attested, 8 connected, 3 general references.Religions, 17 claims: 10 well-attested, 1 holds, 6 general references.Sources, 10 claims: 8 well-attested, 2 holds.Denominations, 3 claims: 3 general references.Organizations, 1 claims: 1 general references.Religious Organization & Structure, 1 claims: 1 general references.Well-attested438ArticlesBuddhism TodayReform, Politics and the PresentReligion and History in AfghanistanReligion and History in AlbaniaReligion and History in Antigua and BarbudaReligion and History in AustraliaReligion and History in AustriaReligion and History in BahrainReligion and History in BelarusReligion and History in BelizeReligion and History in BeninReligion and History in BrazilReligion and History in Burkina FasoReligion and History in CambodiaReligion and History in CanadaReligion and History in ChadReligion and History in ChileReligion and History in ChinaReligion and History in CubaReligion and History in DenmarkReligion and History in DjiboutiReligion and History in DominicaReligion and History in EthiopiaReligion and History in FranceReligion and History in French PolynesiaReligion and History in GermanyReligion and History in GreeceReligion and History in GrenadaReligion and History in GuineaReligion and History in Guinea-BissauReligion and History in GuyanaReligion and History in HaitiReligion and History in IndonesiaReligion and History in IranReligion and History in IraqReligion and History in IrelandReligion and History in IsraelReligion and History in ItalyReligion and History in JapanReligion and History in JordanReligion and History in KenyaReligion and History in KiribatiReligion and History in LaosReligion and History in LebanonReligion and History in LesothoReligion and History in LiberiaReligion and History in LiechtensteinReligion and History in LithuaniaReligion and History in LuxembourgReligion and History in MaliShowing 1 to 50 of 291 entities carrying this claim. NextScholarly debate4CountriesBeninHaitiHondurasSouth SudanOpen question3CountriesLebanonSyriaTurkeyHolds246CountriesAfghanistanAlbaniaAlgeriaAngolaArgentinaArmeniaAustraliaAustriaAzerbaijanBahrainBangladeshBarbadosBelarusBelgiumBeninBhutanBoliviaBosnia and HerzegovinaBotswanaBrazilBulgariaBurkina FasoBurundiCabo VerdeCambodiaCameroonCanadaChileChinaColombiaCosta RicaCroatiaCubaCyprusCzech RepublicDemocratic Republic of the CongoDenmarkDominican RepublicEcuadorEgyptEl SalvadorEstoniaEthiopiaFederated States of MicronesiaFijiFinlandFranceFrench PolynesiaGeorgiaGermanyShowing 1 to 50 of 153 entities carrying this claim. NextConnected37ArticlesReligion and History in Antigua and BarbudaReligion and History in BelizeReligion and History in ChadReligion and History in DjiboutiReligion and History in DominicaReligion and History in GrenadaReligion and History in GuineaReligion and History in Guinea-BissauReligion and History in GuyanaReligion and History in KiribatiReligion and History in LesothoReligion and History in LiberiaReligion and History in LiechtensteinReligion and History in LuxembourgReligion and History in MontenegroReligion and History in NauruReligion and History in NigerReligion and History in PalauReligion and History in Saint Kitts and NevisReligion and History in Saint LuciaReligion and History in Sao Tome and PrincipeReligion and History in SeychellesReligion and History in the BahamasReligion and History in the Central African RepublicReligion and History in the Marshall IslandsReligion and History in the Republic of the CongoReligion and History in Timor-LesteReligion and History in TogoReligion and History in TuvaluOpen QuestionsWhat is Lebanon's actual religious composition today?What is Syria's religious composition after the civil war?What share of Turkey's population identifies as Alevi?General References238ArticlesKohut Founds a Fact Tank and Religion Gets Better NumbersReligion and History in Antigua and BarbudaReligion and History in BelizeReligion and History in ChadReligion and History in DjiboutiReligion and History in DominicaReligion and History in GrenadaReligion and History in GuineaReligion and History in Guinea-BissauReligion and History in GuyanaReligion and History in KiribatiReligion and History in LesothoReligion and History in LiberiaReligion and History in LiechtensteinReligion and History in LuxembourgReligion and History in MontenegroReligion and History in NauruReligion and History in NigerReligion and History in PalauReligion and History in Saint Kitts and NevisReligion and History in Saint LuciaReligion and History in Sao Tome and PrincipeReligion and History in SeychellesReligion and History in the BahamasReligion and History in the Central African RepublicReligion and History in the Marshall IslandsReligion and History in the Republic of the CongoReligion and History in Timor-LesteReligion and History in TogoReligion and History in TuvaluCountriesAfghanistanAlbaniaAlgeriaAndorraAngolaAntigua and BarbudaArgentinaArmeniaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBhutanShowing 1 to 50 of 238 entities carrying this claim. NextComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0 open reader challenges)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.View At A Past YearThe atlas records no dated fact of its own for this entry, so there is no other year to choose.Show This Year