Religions

Religions#

Reference of major religious traditions, denominations, and estimated adherent populations. Useful operator-facing context for political, social, and security analysis, religion intersects with sanctions, holidays, regulatory frameworks (halal / kosher / etc.), and conflict / minority-protection work.

For calendar-relevant observances, see Calendar. For treaties on religious freedom + minority protection, see International Treaties.

Major world traditions (estimated adherents)#

Tradition

Adherents

Notes

Christianity

~2.4 B

Catholic + Orthodox + Protestant + others.

Islam

~1.9 B

Sunni majority + Shia + minority sects.

Hinduism

~1.2 B

majority Indian-subcontinent + diaspora.

Buddhism

~520 M

East / SE Asia + Western converts.

Folk / traditional

~430 M Americas, etc.

Chinese folk, African traditional, Indigenous

Sikhism

~30 M

predominantly Punjab + diaspora.

Judaism

~15 M

Israel (~7 M) + US (~6 M) + others.

Bahá’í

~8 M

Iranian-origin; global.

Jainism

~5 M

India + diaspora.

Shinto

~5 M (formal)

; ~70 M cultural Japan.

Cao Đài, Hòa Hảo

~5-8 M

Vietnam.

Tenrikyo, others

~2 M each

-

Zoroastrianism

~120 K

Iran + India (Parsi) + diaspora.

Druze

~1 M

Levant.

Yazidi

~1 M

Iraq / Syria / diaspora.

Mandaean

~70 K

Iraq / Iran / diaspora.

Rastafarianism

~700 K

-

Wicca / Pagan

~1-3 M

-

Unaffiliated / secular

~1.2 B

“nones”; agnostic + atheist + no preference.

Christianity (denominations)#

Branch

Notes

Roman Catholic

~1.4 B; centered on Holy See (Vatican); Pope.

Eastern Orthodox

~220 M; autocephalous: Constantinople, Russian, Greek, Romanian, Serbian, Bulgarian, Antioch, Alexandria, Jerusalem, Cyprus, Albanian, Czech-Slovak, Polish, Georgian, OCA.

Oriental Orthodox

~60 M; non-Chalcedonian: Coptic, Ethiopian, Armenian Apostolic, Syriac, Malankara, Eritrean.

Anglican / Episcop.

~85 M; Communion of 41 provinces; Church of England, Episcopal Church (US), Anglican Church of Canada, etc.

Lutheran

~75 M; ELCA, LCMS, WELS in US; Sweden, Finland, etc.

Reformed / Presbyt.

~80 M; PCUSA, PCA in US; Church of Scotland, Dutch Reformed.

Methodist

~60 M; UMC, GMC, others.

Baptist

~100 M; SBC, NBC, ABC etc.

Pentecostal /

~280 M; Assemblies of God, COGIC, IPCH, fast-growing

Charismatic

in Latin America + Africa.

Evangelical (broad)

~600 M overlap with above.

Restorationist

Mormons (LDS, ~17 M); Jehovah’s Witnesses (~9 M); Church of Christ.

Independent / Indigenous

~400 M; African Initiated Churches, house churches.

Islam (branches)#

Branch

Notes

Sunni

~85-90%; Hanafi (Türkiye, S Asia, Egypt), Maliki (N+W Africa), Shafi’i (E Africa, SE Asia), Hanbali (Saudi Arabia + Wahhabi).

Shia (Twelver)

~10-15%; majority Iran, Iraq, Bahrain, Azerbaijan, Lebanon (largest community); plurality in Yemen, Syria.

Shia (Ismaili)

Nizari, Tayyibi (Bohra) sub-sects.

Shia (Zaydi)

Yemen Houthi-aligned.

Ibadi

Oman + Zanzibar; ~2 M.

Ahmadiyya

~10-20 M; Pakistan-origin; persecuted in many Sunni- majority countries.

Sufism

cross-cutting mystical tradition; orders include Naqshbandi, Qadiri, Chishti, Mevlevi, Tijani, Suhrawardi.

Salafi / Wahhabi

Sunni revivalist movement; influential in Gulf; distinct from but related to jihadist trends.

Druze (above) and

movements often classified separately or as

Alawi / Alevi

heterodox Muslim.

Buddhism (branches)#

Branch

Notes

Theravada

~150 M; Sri Lanka, Myanmar, Thailand, Cambodia, Laos.

Mahayana

~360 M; East Asia (China, Japan, Korea, Vietnam); includes Pure Land + Zen / Chan + Tiantai + Nichiren.

Vajrayana

~20 M; Tibet, Mongolia, Bhutan, Himalayan India, Tibetan diaspora; 4 schools (Nyingma, Kagyu, Sakya, Gelug).

Western Buddhist

converts; non-sectarian.

Soka Gakkai

Japanese-origin Nichiren reform movement.

Hinduism (branches / movements)#

Tradition

Notes

Vaishnavism

Vishnu-centered; ISKCON / Hare Krishna a Western branch.

Shaivism

Shiva-centered; major in S India.

Shaktism

Devi-centered.

Smartism

Adi Shankara-derived; multi-deity worship.

Arya Samaj

Reform movement (Dayanand Saraswati).

Brahmo Samaj

Reform.

Sant Mat / Sikh- Hindu syncretism

bridging traditions.

Judaism (branches)#

Branch

Notes

Orthodox

includes Modern Orthodox + Haredi (Hasidic + Litvish).

Conservative / Masorti

middle-ground; large in US.

Reform / Liberal

progressive; large in US + UK.

Reconstructionist

small; US-origin.

Karaite

non-Talmudic; small global community.

Samaritans

~800; Mount Gerizim (Palestinian Authority + Israel).

Sikhism (sects)#

Sect

Notes

Khalsa

orthodox; most Sikhs follow.

Nirankari, Namdhari

heterodox movements.

Sahajdhari

non-baptised practitioners.

Distribution by region#

Region

Religious composition (rough)

Europe

Christian-majority (Catholic / Protestant / Orthodox); secularising fast. Muslim minorities in West EU, large in BA / AL / TR / Caucasus.

Middle East / NA

Muslim-majority (Sunni / Shia split); Jewish-majority Israel; Christian minorities (Coptic Egypt, Maronite Lebanon, etc.).

Sub-Saharan Africa

~half Christian + half Muslim + significant traditional religious practice; rapid growth in both globally.

South Asia

Hindu-majority India; Muslim majority Pakistan + Bangladesh; Buddhist Sri Lanka + Bhutan; mixed Nepal.

SE Asia

Islam (Indonesia + Malaysia + S Philippines + S Thailand); Buddhism (Thailand + Laos + Cambodia + Myanmar + Vietnam); Christianity (Philippines + East Timor + minorities).

East Asia

officially atheist + folk-religion mix in China; Buddhism + Shinto in Japan; Buddhism + Christianity in Korea; Buddhism + Confucianism in Vietnam.

Americas

Christian-majority (Catholic in Latin America + Quebec + Louisiana, mixed in US, Catholic / Protestant in Caribbean); growing “nones”.

Oceania

Christian-majority + secularising; Polynesian + Melanesian indigenous traditions.

Operator notes#

  • Religious-affiliation identifiability, highly variable; many people identify culturally but not practicing; some (Druze, Yazidi, Samaritans) endogamous and ethno-religious.

  • Calendar / observance impact, operations during major holidays (Ramadan, Yom Kippur, CNY, Diwali, Easter) often disrupted; cross-reference Calendar.

  • Halal / kosher / vegetarian, operationally relevant for catering, supply chains, financial products.

  • Persecution monitoring, USCIRF, Open Doors, Pew, ACN, Forum-18 publish annual reports.

  • Sectarian conflict, many active conflicts have sectarian dimensions: Sunni-Shia (Yemen, Iraq, Bahrain), Hindu-Muslim (Kashmir, periodic India), Buddhist-Muslim (Myanmar Rohingya, Sri Lanka periodic), Christian-Muslim (Nigeria Middle Belt, CAR).

  • Sanctions / proscription, some movements are designated terrorist organizations under various national regimes; never conflate religion broadly with proscribed splinter groups.

  • Census quality, adherent counts are inconsistent; Pew Forum, ARDA, Operation World are the cited sources; treat as rough.

References#

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