By 2025, the global religious landscape is still shifting, with world religion populations changing at very different speeds across faiths and regions. Some traditions are growing steadily while others face slower growth or even population declines in key areas. If you have ever wondered how one percentage point can reshape entire communities, these next figures make that tension impossible to ignore.
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Buddhism
1Global Buddhist population in 2020: 492 million, 6.6% world share
Verified
22023 estimate: 507 million Buddhists worldwide, 6.4%
Verified
32010: 488 million Buddhists, 7% global
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42050 projection: 486 million Buddhists, slight decline
Single source
5China has 244 million Buddhists in 2023, 18% population
Directional
6Thailand 64 million Buddhists in 2023, 93%
Verified
7Japan 46 million Buddhists in 2023, 36%
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8Myanmar 48 million Buddhists in 2023, 88%
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9Vietnam 39 million Buddhists in 2023, 39%
Verified
10Sri Lanka 14 million Buddhists in 2023, 70%
Directional
11Asia-Pacific: 99% of Buddhists, 487 million in 2020
Verified
12Buddhist growth rate 0.9% 2010-2020
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13Buddhist fertility rate 1.6 children per woman 2010-2015, lowest among majors
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14Buddhists under 15: 85 million in 2020
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15Cambodia 15 million Buddhists in 2023, 97%
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16Laos 6.4 million Buddhists in 2023, 66%
Verified
17Bhutan 770,000 Buddhists in 2023, 75%
Directional
18Mongolia 1.9 million Buddhists in 2023, 53%
Verified
19South Korea 7 million Buddhists in 2023, 15%
Directional
20Taiwan 35 million Buddhists/Taoists in 2023, 35%
Verified
21United States 3.5 million Buddhists in 2023, 1%
Verified
Buddhism Interpretation
While Buddhism's global share gently wanes due to the lowest fertility rate among major religions, its profound Asian heartland remains steadfast, proving that spiritual influence is measured not merely in births but in the depth of its cultural roots.
More related reading
Christianity
1In 2020, the global Christian population was estimated at 2.3 billion, comprising 31% of the world's total population of 7.8 billion
Verified
2As of 2023, there are approximately 2.382 billion Christians worldwide, representing 31.1% of the global population
Verified
3In 2010, Christians numbered 2.2 billion globally, making up 31% of the world population
Verified
4By 2050, the Christian population is projected to reach 2.9 billion, still the largest religious group
Verified
5In 2023, the United States has the largest Christian population at 230 million adherents
Verified
6Brazil's Christian population stands at 173 million in 2023, 88% of its national population
Verified
7Mexico has 107 million Christians as of 2023, representing 92% of its population
Verified
8Nigeria's Christian population is estimated at 97 million in 2023, about 50% of the country
Verified
9Russia has 105 million Christians in 2023, primarily Orthodox, 71% of population
Verified
10Philippines has 93 million Christians in 2023, 86% Roman Catholic
Verified
11In Europe, Christians number 558 million in 2020, 75% of regional population
Directional
12Sub-Saharan Africa's Christian population grew to 631 million by 2020, 62% regional share
Verified
13Latin America's Christians total 531 million in 2020, 90% of population
Verified
14North America's Christian population is 235 million in 2023, down from previous decades
Directional
15Asia-Pacific has 287 million Christians in 2020, 7% regional share
Verified
16The annual growth rate of global Christians was 1.18% from 2010-2020
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17Roman Catholics number 1.329 billion worldwide in 2023, largest Christian denomination
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18Protestants total around 900 million globally in 2023
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19Eastern Orthodox Christians are 220 million in 2023, mainly in Eastern Europe
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20Anglicans number 85 million worldwide in 2023
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21Pentecostals and Charismatics total over 600 million in 2023
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22Christians under 15 years old number 530 million globally in 2020
Single source
23Christian fertility rate averages 2.6 children per woman in 2010-2015
Single source
2484% of global Christians live in developing regions as of 2020
Verified
25China has 70 million Christians in 2023, growing rapidly underground
Directional
26India has 28 million Christians in 2023, 2% of population
Verified
27Ethiopia's Christians total 52 million in 2023, 63% Orthodox
Verified
28DR Congo has 83 million Christians in 2023, 95% of population
Verified
29Germany has 45 million Christians in 2023, declining due to secularization
Verified
30Italy's Christian population is 52 million in 2023, 83% Roman Catholic
Single source
Christianity Interpretation
Despite holding a steady third of humanity for decades, Christianity's future looks less like a global monolith and more like a vibrant, shifting mosaic—with its energetic growth in the global south quietly compensating for its yawn of decline in the secularizing west.
More related reading
Hinduism
1Global Hindu population in 2020 was 1.09 billion, 15% of world total
Verified
2As of 2023, Hindus number 1.16 billion worldwide, 14.9% global share
Directional
3In 2010, Hindu population was 966 million, 14% of world
Single source
4By 2050, Hindus projected at 1.4 billion
Single source
5India has 1.09 billion Hindus in 2023, 79% of national population
Directional
6Nepal's Hindus total 28 million in 2023, 81% of population
Verified
7Bangladesh has 13 million Hindus in 2023, 8% share
Directional
8Indonesia's Hindu population is 4.2 million in 2023, mainly Bali, 1.6%
Verified
9Pakistan has 4 million Hindus in 2023, 2% of population
Verified
10Sri Lanka's Hindus number 2.7 million in 2023, 12.6%
Directional
11Asia-Pacific holds 99% of global Hindus, 1.08 billion in 2020
Verified
12Hindu growth rate 0.7% annually 2010-2020
Directional
13Hindu fertility rate 2.3 children per woman 2010-2015
Verified
14Hindus under 15: 272 million in 2020
Verified
15Mauritius has 600,000 Hindus in 2023, 48% of population
Verified
16Fiji's Hindu population 274,000 in 2023, 27%
Verified
17Guyana has 190,000 Hindus in 2023, 24%
Directional
18Trinidad and Tobago 300,000 Hindus in 2023, 18%
Verified
19Malaysia 1.9 million Hindus in 2023, 6%
Directional
20South Africa 1 million Hindus in 2023, 1.2%
Verified
21United Kingdom 1 million Hindus in 2023, 1.7%
Verified
22United States 2.5 million Hindus in 2023, 0.7%
Verified
23Canada 830,000 Hindus in 2023, 2.3%
Directional
24Australia 684,000 Hindus in 2023, 2.7%
Single source
25UAE 1 million Hindus in 2023, expatriates
Verified
Hinduism Interpretation
While Hinduism's soul remains anchored in India and Nepal, its story is one of steadfast growth and global diffusion, proving that a billion-plus adherents can both dominate a subcontinent and quietly become a significant minority from Mauritius to Manhattan.
More related reading
Islam
1In 2020, the global Muslim population was 1.9 billion, 24% of world population
Verified
2As of 2023, Muslims number approximately 1.98 billion worldwide, 24.9% of global population
Verified
3In 2010, the Muslim population stood at 1.6 billion, 23% of world total
Single source
4By 2050, Muslims are projected to reach 2.8 billion, nearly equaling Christians
Verified
5Indonesia has the largest Muslim population at 241 million in 2023, 87% of country
Single source
6Pakistan's Muslims total 225 million in 2023, 96% Sunni
Verified
7India has 211 million Muslims in 2023, 15% of population
Single source
8Bangladesh has 153 million Muslims in 2023, 91% of population
Verified
9Nigeria's Muslim population is 99 million in 2023, 50% of country
Single source
10Egypt has 95 million Muslims in 2023, 90% Sunni
Single source
11Middle East-North Africa's Muslims number 341 million in 2020, 93% regional share
Verified
12Asia-Pacific Muslims total 1.1 billion in 2020, 62% global total
Directional
13Sub-Saharan Africa has 248 million Muslims in 2020, 30% regional population
Single source
14Europe's Muslim population is 44 million in 2020, 6% share
Verified
15Global Muslim growth rate was 1.84% annually 2010-2020
Verified
16Sunni Muslims comprise 87-90% of global Muslims, about 1.7 billion in 2023
Directional
17Shia Muslims total 200-300 million worldwide in 2023, mainly in Iran/Iraq
Verified
18Muslim fertility rate averages 2.9 children per woman 2010-2015
Verified
19Muslims under 15 years: 422 million in 2020
Verified
20Iran has 84 million Muslims in 2023, 99% Shia
Verified
21Turkey's Muslims number 84 million in 2023, 99% Sunni
Directional
22Saudi Arabia has 35 million Muslims in 2023, 100% officially
Verified
23Algeria's Muslim population is 43 million in 2023, 99% Sunni
Verified
24Iraq has 41 million Muslims in 2023, 60-65% Shia
Verified
25Afghanistan's Muslims total 41 million in 2023, 99.7% Sunni
Directional
26Morocco has 37 million Muslims in 2023, 99% Sunni
Verified
Islam Interpretation
While remaining firmly second place in the global faith race, Islam’s youthful energy and robust fertility suggest it’s not just growing, but actively stretching the finish line tape for 2050.
More related reading
Other and Unaffiliated
1Global unaffiliated population in 2020: 1.19 billion, 16% world share
Single source
22023: 1.2 billion religiously unaffiliated, 15.6%
Directional
32010: 1.13 billion unaffiliated, 16%
Single source
4China has 700 million unaffiliated in 2023, 52%
Directional
5Japan 72 million unaffiliated in 2023, 57%
Verified
6United States 100 million unaffiliated in 2023, 29%
Directional
7Global Jews: 14.7 million in 2020, 0.2%
Verified
82023 Jewish population: 15.7 million
Verified
9Israel 6.8 million Jews in 2023, 74%
Single source
10United States 5.7 million Jews in 2023
Verified
11Folk religions 430 million in 2020, 6%
Verified
12Chinese folk religions 394 million in 2023
Verified
13African traditional religions 100 million in 2023
Verified
14Sikhs 25 million globally in 2020
Verified
15India 23 million Sikhs in 2023, 1.7%
Directional
16Canada 770,000 Sikhs in 2023, 2%
Directional
17Other religions total 61 million in 2020, 1%
Verified
18Baha'is 8 million worldwide in 2023
Verified
19Jains 4.5 million, mostly India 2023
Verified
20Shintoists 2-4 million in Japan 2023
Verified
21Zoroastrians under 200,000 globally 2023
Single source
Other and Unaffiliated Interpretation
While China and Japan are quietly leading a secular majority movement, the world's religious landscape is otherwise a stubbornly stable tapestry where, despite massive population growth, the pie slices of belief are barely budging, proving that faith and identity are far stickier than the latest headlines suggest.
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
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Marcus Engström. (2026, February 13). World Religion Population Statistics. Gitnux. https://gitnux.org/world-religion-population-statistics
MLA
Marcus Engström. "World Religion Population Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/world-religion-population-statistics.
Chicago
Marcus Engström. 2026. "World Religion Population Statistics." Gitnux. https://gitnux.org/world-religion-population-statistics.
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- Reference 5ORTHODOXWIKIorthodoxwiki.org
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- Reference 6ANGLICANCOMMUNIONanglicancommunion.org
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- Reference 7ENen.wikipedia.org
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- Reference 8ONSons.gov.uk
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- Reference 9STATCANstatcan.gc.ca
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- Reference 10ABSabs.gov.au
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- Reference 11BAHAIbahai.org
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