Religion still shapes daily life for most people, with 84% of the world identifying with a religion in 2023. Yet the totals swing dramatically from 520 million Buddhists to 1.2 billion unaffiliated people, and projections to 2050 suggest Muslims may nearly catch Christians at 2.76 billion versus 2.92 billion. Use these snapshots to ask what changes, what stays steady, and where belief boundaries are most likely to shift.
Key Takeaways
- World's Buddhists total 520 million in 2020, 7% global.
- Theravada Buddhists 150 million, mainly SE Asia.
- Mahayana Buddhists 350 million, East Asia.
- Catholics represent 50% of all Christians worldwide, about 1.3 billion in 2023.
- Protestants number around 900 million globally as of 2023 estimates.
- Orthodox Christians total 260 million, mainly in Eastern Europe.
- As of 2020, approximately 2.38 billion people worldwide identified as Christians, representing 31% of the global population.
- Muslims numbered about 1.91 billion in 2020, comprising 24% of the world's population.
- Hindus totaled around 1.16 billion in 2020, accounting for 15% of global population.
- India has 1.2 billion Hindus, 79% of population in 2023.
- Nepal 81% Hindu majority.
- Mauritius 48% Hindu.
- World Muslim population reached 1.8 billion in 2015, 24% global.
- Indonesia has largest Muslim population at 229 million in 2023.
- Pakistan second with 225 million Muslims.
In 2020, 84 percent of people identified with a religion, led by Christianity and Islam worldwide.
Buddhism and Other Religions
1World's Buddhists total 520 million in 2020, 7% global.
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2Theravada Buddhists 150 million, mainly SE Asia.
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3Mahayana Buddhists 350 million, East Asia.
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4Vajrayana 20 million, Tibet, Mongolia.
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5China 244 million Buddhists.
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6Thailand 64 million, 93% Buddhist.
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7Japan 46% Buddhist identification.
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8Myanmar 88% Buddhist.
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9Cambodia 97% Buddhist.
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10Sri Lanka 70% Buddhist.
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1167% of Buddhists believe in karma.
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12Sikhism has 25-30 million adherents worldwide.
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13India 20 million Sikhs, 2% population.
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14Canada 2% Sikh population.
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15Jews total 14.7 million worldwide in 2023.
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16Israel 73% Jewish population.
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17US 2.4% Jewish, 7.5 million.
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18Orthodox Jews 10% of US Jews.
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19Unaffiliated 1.2 billion globally, 16% in 2020.
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20China 52% unaffiliated.
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21Japan 57% unaffiliated.
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22Czech Republic 59% unaffiliated.
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23Baha'is 5-8 million worldwide.
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24Jains 4-5 million, mostly India.
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25Shintoists 2-4 million in Japan.
Directional
26Taoists 2-3 million globally.
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27Zoroastrians under 200,000.
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2826% of US adults unaffiliated in 2021.
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Buddhism and Other Religions Interpretation
While Buddhists dominate Asia's spiritual landscape with the serene weight of half a billion adherents, the quietly growing chorus of the unaffiliated suggests that in a crowded marketplace of beliefs, the most popular faith might just be a deeply personal, private one.
Christianity Statistics
1Catholics represent 50% of all Christians worldwide, about 1.3 billion in 2023.
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2Protestants number around 900 million globally as of 2023 estimates.
Directional
3Orthodox Christians total 260 million, mainly in Eastern Europe.
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4In the US, 63% identify as Christian per 2021 Pew survey.
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5Evangelicals make up 25% of US adults in 2021.
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6US Catholics declined to 20% of adults from 23% in 2007-2021.
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7Mainline Protestants in US at 14% in 2021.
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890% of Christians worldwide live outside Europe/North America.
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9Sub-Saharan Africa has 24% of world's Christians in 2023.
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10Latin America holds 24% of global Christians.
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11Asia-Pacific has 13% of world's Christians.
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1280% of Christians in Nigeria are Protestant per 2020 data.
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13Brazil has 173 million Christians, 88% of population in 2022.
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14US has 243 million Christians, but declining share.
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1537% of US Christians attend church weekly per 2021 Gallup.
Directional
16Christian belief in God at 80% among US adults in 2022.
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17Pentecostals number 279 million worldwide in 2023.
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18Anglicans total 85 million members globally.
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19Baptists have 100 million adherents worldwide.
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20Seventh-day Adventists: 21 million members in 2023.
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21Jehovah's Witnesses: 8.7 million active members in 2023.
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2265% of US Christians say Bible is literal word of God.
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23Christian missionaries number over 430,000 globally.
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242.5 billion Christians projected by 2025.
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25China has 70 million Christians, growing rapidly.
Directional
2647% of sub-Saharan Christians are Protestant.
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27Ethiopia has 63 million Christians, 64% Orthodox.
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28Philippines 93% Christian, mostly Catholic.
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29DR Congo 95% Christian population.
Directional
30Mexico 92% Christian, 80% Catholic.
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31Russia 71% Orthodox Christian.
Directional
Christianity Statistics Interpretation
While Catholicism may claim the largest single slice of the Christian pie, the faith's undeniable center of gravity has decisively shifted southward, where its most explosive growth now occurs far from its traditional European strongholds.
Global Religious Population
1As of 2020, approximately 2.38 billion people worldwide identified as Christians, representing 31% of the global population.
Verified
2Muslims numbered about 1.91 billion in 2020, comprising 24% of the world's population.
Single source
3Hindus totaled around 1.16 billion in 2020, accounting for 15% of global population.
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4Buddhists were approximately 507 million in 2020, or 7% of the world population.
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5The religiously unaffiliated population stood at 1.19 billion in 2020, 16% globally.
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6Folk religions had 430 million adherents in 2020, 6% of world population.
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7Other religions combined reached 61 million in 2020, 1% globally.
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8Jews numbered about 14.8 million in 2020, less than 0.2% of global population.
Single source
9By 2050, Muslims are projected to nearly equal Christians at 2.76 billion vs 2.92 billion.
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10The unaffiliated population is expected to decline to 13% by 2050 from 16% in 2010.
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11In 2010-2050, Asia-Pacific will remain home to majority of global Hindus at 99%.
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12Europe's Christian share to drop from 75% in 2010 to 65% by 2050.
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13Global median age for Muslims is 24 years, youngest among major groups.
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14Christians have median age of 30, Hindus 26, unaffiliated 34 globally.
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1573% of global population expected to live in countries with religious restrictions in 2020.
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16Government restrictions on religion highest in Middle East-North Africa at median 5.2/10.
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17Social hostilities involving religion peaked at 3.7/10 median globally in 2020.
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1884% of world population identifies with a religion as of 2023 estimates.
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19Christianity is largest religion in 157 countries as of 2023 data.
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20Islam predominant in 49 countries worldwide per 2023 stats.
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21Hindus majority in 3 countries: India, Nepal, Mauritius in 2023.
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22Buddhists lead in 7 countries including Cambodia, Thailand per 2023.
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23Unaffiliated highest in 15 countries like China, Japan in 2023.
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24Global religious switching adds 3 million net gains to Christianity annually.
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25Islam projected to grow by 70% from 2010-2050 due to fertility.
Single source
26Hinduism to increase 34% by 2050, mostly in India.
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27Buddhism population stable, projected decline to 5% by 2050.
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28Folk religions to grow 11% by 2050 to 450 million.
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2952 countries had high religious restrictions in mid-2020.
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Global Religious Population Interpretation
In a world where the devout and the doubtful are meticulously counted, it appears we are not so much losing our religion as we are vigorously, and sometimes forcibly, redistributing it.
Hinduism Statistics
1India has 1.2 billion Hindus, 79% of population in 2023.
Directional
2Nepal 81% Hindu majority.
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3Mauritius 48% Hindu.
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494% of global Hindus live in India.
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5Hindu median age 26 years, young population.
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680% of Hindus are in North/Central/South Asia.
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761% of Indian Hindus say being Hindu is important to nationality.
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864% of Hindus in India have caste ties.
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9Diwali celebrated by 75% of Indian Hindus.
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1077% of Indian Hindus believe in karma.
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1181% of Hindus believe in reincarnation.
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1230% of Hindus meditate daily in India.
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13Vaishnavism largest Hindu tradition with 340 million.
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14Shaivism second with 300 million followers.
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1572% of Indian population Hindu per 2011 census.
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16Hindu fertility rate 2.3, above replacement.
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174 million Hindus in US per 2020 ARIS.
Single source
18Fiji 27% Hindu population.
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19Guyana 28% Hindu.
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20Suriname 22% Hindu.
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2189% of Hindus visit temple occasionally.
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2245% of Hindus oppose interfaith marriage.
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23Bangladesh 8% Hindu minority.
Directional
24Pakistan 2% Hindu.
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2596% of Hindus vegetarian or prefer veg food.
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Hinduism Statistics Interpretation
India is a young, devout, and demographically robust Hindu heartland, whose majority holds faith, philosophy, and tradition as central to its identity, even as its diaspora and distinct regional pockets reveal a surprisingly resilient global tapestry woven with caste, karma, and the occasional samosa.
Islam Statistics
1World Muslim population reached 1.8 billion in 2015, 24% global.
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2Indonesia has largest Muslim population at 229 million in 2023.
Single source
3Pakistan second with 225 million Muslims.
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4India third at 211 million Muslims in 2023.
Single source
5Bangladesh 153 million Muslims.
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6Nigeria 99 million Muslims, nearly half population.
Single source
780% of Muslims live in Asia-Pacific region.
Directional
8Middle East-North Africa has 20% of global Muslims.
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9Sub-Saharan Africa 15% of world Muslims.
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10Sunni Muslims 87-90% of total Muslim population.
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11Shia Muslims 10-13% globally, concentrated in Iran, Iraq.
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12Ahmadiyya Muslims estimated 10-20 million worldwide.
Directional
1393% of US Muslims born outside US per 2017 Pew.
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14US Muslim population 3.45 million adults in 2017.
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1582% of US Muslims say Islam motivates charity.
Directional
16Ramadan fasting observed by 79% of Muslims in many countries.
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1767 countries have Islam as official religion in 2023.
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18Saudi Arabia 100% Muslim population.
Directional
19Maldives 100% Muslim.
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20Mauritania 100% Muslim.
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2165% of Muslims pray five times daily in surveyed countries.
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22Sharia preferred as law by 99% in Afghanistan.
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2312% of Muslims in US are Shia.
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24Muslim fertility rate 2.9 children per woman vs global 2.5.
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25Iran 99% Muslim, 90-95% Shia.
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26Turkey 99% Muslim, mostly Sunni.
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27Egypt 90 million Muslims, 95% of population.
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Islam Statistics Interpretation
Nearly a quarter of humanity finds common ground in Islam, making it a faith of immense scale and diversity, from the bustling Muslim-majority streets of Jakarta and Lagos to the smaller, devout communities in the West, all united by pillars like charity and prayer yet distinctly shaped by their local cultures and interpretations.
How We Rate Confidence
Models
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.
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
Directional
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
Verified
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
Models
Cite This Report
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APA
Aisha Okonkwo. (2026, February 13). Religion Statistics. Gitnux. https://gitnux.org/religion-statistics
MLA
Aisha Okonkwo. "Religion Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/religion-statistics.
Chicago
Aisha Okonkwo. 2026. "Religion Statistics." Gitnux. https://gitnux.org/religion-statistics.
Sources & References
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pewresearch.org
- Reference 2WORLDPOPULATIONREVIEWworldpopulationreview.com
worldpopulationreview.com
- Reference 3CATHOLIC-HIERARCHYcatholic-hierarchy.org
catholic-hierarchy.org
- Reference 4NEWSnews.gallup.com
news.gallup.com
- Reference 5PEWFORUMpewforum.org
pewforum.org
- Reference 6ADVENTISTadventist.org
adventist.org
- Reference 7JWjw.org
jw.org
- Reference 8GALLUPgallup.com
gallup.com
- Reference 9GORDONCONWELLgordonconwell.edu
gordonconwell.edu
- Reference 10CENSUSINDIAcensusindia.gov.in
censusindia.gov.in
- Reference 11JEWISHVIRTUALLIBRARYjewishvirtuallibrary.org
jewishvirtuallibrary.org