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Top Countries by Their Largest Religions in 2025
India’s Deep Roots in Hinduism
India remains the world’s most Hindu nation, with nearly 80% of its population adhering to Hinduism. This ancient religion is woven into the country’s cultural fabric, influencing festivals, daily rituals, and social customs. Despite modern influences, Hindu traditions continue to thrive across India, maintaining a strong spiritual identity.
Japan’s Predominance of Unaffiliated Individuals
In Japan, approximately 60% of the population identifies as unaffiliated with any religion. This demographic trend reflects a cultural leaning towards secularism, with many Japanese embracing traditional customs without formal religious affiliation. The spiritual landscape here is marked more by cultural practices than organized religion.
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The United States: A Majority Christian Nation
Over 63% of Americans identify as Christian, making it the dominant religion in the country. The religious landscape in the U.S. is diverse, encompassing a variety of denominations, including Protestantism, Catholicism, and Orthodox Christianity. Religious freedom and diversity have helped shape a society where multiple faiths coexist.
Pakistan’s Religious Majority: Islam
Pakistan stands out with an overwhelming 97% of its population practicing Islam, predominantly Sunni. Religion plays a central role in governance, daily life, and cultural customs. The nation’s laws and societal norms are deeply intertwined with Islamic principles.
Nigeria’s Religious Diversity and Balance
In Nigeria, Islam is practiced by about half of the population, with Christianity close behind. This religious mix influences Nigeria’s social dynamics and politics, contributing to a multifaceted cultural landscape. The coexistence of these faiths shapes the country’s festivals, societal structures, and community policies.
Bangladesh: An Islamic Majority
Bangladesh is predominantly Muslim, with approximately 90% adhering to Islam. The Islamic faith influences many aspects of Bangladeshi life, from national holidays to social etiquettes, emphasizing the religion’s integral role in national identity.
Brazil’s Christian Heritage
With around 88% of its population identifying as Christian, Brazil reflects a deeply Catholic nation, although Protestantism is also significant. Religious festivals, like Carnival and Christmas, are celebrated with fervor and are integral to Brazilian cultural expression.
Russia’s Religious Composition
Christianity, primarily Russian Orthodoxy, is followed by about 72% of Russians. The Russian Orthodox Church maintains a powerful presence, intertwined with national identity and history. Other religious groups exist, but Orthodoxy remains predominant.
Mexico’s Deep Christian Roots
Over 82% of Mexicans identify as Christian, with Catholicism being the dominant faith. Religious traditions play a vital role in the everyday lives of people, influencing celebrations like Día de los Muertos and Christmas festivities.
Indonesia: The Largest Muslim Population in Southeast Asia
Home to approximately 87% Muslims, Indonesia holds the title as the country with the world’s largest Muslim population. Islam’s traditions permeate Indonesian culture, from architecture to daily practices, coexisting with indigenous beliefs.
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Egypt’s Majority Islam Population
With 90% of Egyptians practicing Islam, the religion guides many social and cultural aspects of Egyptian life. Islamic customs influence architecture, festivals, and daily routines, maintaining Egypt’s historical connection to Islam.
Turkey: Nearly Universal Adherence to Islam
An astonishing 98% of Turkey’s population practices Islam, primarily Sunni. While Turkey remains officially secular, Islamic traditions are well integrated into its public life and cultural heritage.
Iran: A Nation Under Islamic Influence
Iran’s population is overwhelmingly Muslim, with 99% adhering to Islam. The country’s governance, culture, and public life are deeply rooted in Shia Islamic principles.
The Philippines: Christianity as a National Identity
More than 90% of Filipinos identify as Christian, predominantly Catholic. Religious festivals, processions, and church activities are an essential part of Filipino life, reflecting their vibrant faith community.
Ethiopia’s Christian Heritage
Sixty percent of Ethiopians follow Christianity, including the Ethiopian Orthodox Tewahedo Church. The country’s ancient Christian heritage continues to influence its culture, art, and festivals.
Vietnam and South Korea: Unaffiliated but with Religious Influence
Vietnam sees about 70% of its population as unaffiliated, yet many follow traditional practices. South Korea has 56% unaffiliated, with Buddhism and Christianity playing significant roles in cultural and spiritual life.
European Countries: A Mix of Christianity and Secularism
Germany (55%), France (47%), and the UK (49%) showcase varied religious adherence, with Christianity being historically dominant, though secular and unaffiliated groups are growing.
Italy, Spain, and Other European Countries
Italy maintains about 80% Christian adherence, mainly Catholic. Spain and the UK have roughly 70% and 49% adherents, respectively, often blending traditional Christianity with modern secular trends.
North Korea: Almost Complete Unaffiliation
Nearly 100% of North Koreans are unaffiliated with any religion, with the state promoting atheism and restricting religious practices, making faith an almost nonexistent public factor.
Central Asia: Islamic Strongholds
Kyrgyzstan (85%), Kazakhstan (70%), and other nations in the region continue to practice Islam predominantly, shaped by history and cultural traditions.
Australia and Canada: Christian-Influenced Societies
Both countries show significant Christian populations—44% in Australia and 53% in Canada—alongside growing secular and other faith communities, reflecting multicultural diversity.
South Africa: A Christian Legacy
With about 80% of its population adhering to Christianity, South Africa’s churches and religious practices significantly influence social and political life.
Asia’s Buddhist Heartlands
Thailand (93%) and Sri Lanka (70%) uphold Buddhism as a cornerstone of their cultural identities, with temples, festivals, and daily practices emphasizing spiritual traditions.
The Middle East: Islamic Nations and Jewish Roots
Saudi Arabia (100%) is the heartland of Islam, while Israel (74%) is central to Judaism, with religious history deeply embedded in the national identities.
Conflict and Faith: Iraq, Syria, and Lebanon
Iraq (95%), Syria (90%), and Lebanon (61%) have diverse religious landscapes, with Islam and Christianity shaping their histories, conflicts, and contemporary society.
North African Majorities
Morocco, Tunisia, and Afghanistan are predominantly Muslim, with adherence rates nearing 99%, reflecting Islamic traditions’ influence across North Africa and Central Asia.
Latin America: A Catholic Powerhouse
Countries like Argentina (76%), Colombia (90%), Venezuela (88%), and Peru (90%) continue to be strongholds of Catholicism, blending religious observance with vibrant cultural traditions.
East Africa: Growing Christian Communities
Tanzania (60%) and Kenya (85%) exemplify the spread of Christianity, with faith communities playing vital roles in social development.
Southeast Asian Diversity
Singapore’s modest Buddhist population (31%) coexists with diverse religious practices, emphasizing the region’s multicultural tapestry.
Eastern Europe’s Faith Trends
Ukraine, with about 65% Christian followers, continues to see faith shape its social and cultural landscapes amid ongoing geopolitical shifts.
Source: Pew Research Center, 2025 – Religious Composition by Country
(Note: Data are estimates and may vary)
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