Top 20 Countries Where Christianity is Growing the Fastest

Tobin Perry February 27, 2025

Christianity is growing at an unprecedented rate in several regions around the world, particularly in Africa, Latin America, and Asia, known as the Global South. From the spread of passionate faith-based communities to the establishment of thriving churches in urban centers, Christianity’s growth rate continues to climb.

“According to the Center for the Study of Global Christianity at Gordon-Conwell Theological Seminary”, these trends indicate that Christianity is expanding in new and dynamic ways, particularly as we head toward a projected global Christian population of nearly three billion by 2050. Here, we’ll explore the top 20 countries where Christianity is growing the fastest and examine the factors fueling this growth.

Global Trends in Christian Growth: Where is Christianity Growing the Fastest in the World?

The growth of Christianity is notably strong in countries with higher population growth rates and in regions where the faith is newer and often embraced by the youth. The Global South—particularly sub-Saharan Africa, Latin America, and parts of Asia—has seen some of the most substantial increases in Christian populations.

In contrast, in many Western nations, Christianity has experienced slower growth. Factors like migration, high birth rates, and the influence of revivalist movements are all contributing to the rapid growth.

Top 20 Countries with the Fastest Christian Growth

Let’s examine where in the world Christianity is growing the fastest. These regions are experiencing a significant rate of population increase among Christians, often driven by unique cultural, social, and political factors.

Nigeria

Region: Africa
Growth Factors: High birth rates, Christian charismatic movements
Highlights: Nigeria is a Christian powerhouse in Africa, where Christian groups are growing swiftly, contributing to Nigeria’s booming Christian population. This is despite the increases in violent Islamic extremism.

China

Region: Asia
Growth Factors: House churches, underground church growth, urban outreach
Highlights: Despite government restrictions, China has a rapidly expanding Christian population projected to reach around 100 million by 2050. Increasingly, young, educated individuals are embracing Christianity.

India

Region: Asia
Growth Factors: Evangelical outreach in rural areas
Highlights: India’s Christian community is growing, particularly among marginalized groups, with many drawn to the message of hope and inclusion in Christianity. Additionally, Christianity offers an appealing alternative amid increasing Hindu nationalism.

Indonesia

Region: Southeast Asia
Growth Factors: Christian charismatic influence
Highlights: Known as a Muslim-majority country, Indonesia is experiencing rapid Christian growth. Despite governmental restrictions on churches, this is one of the largest and fastest-growing Christian populations in Asia.

Brazil

Region: Latin America
Growth Factors: Christian growth, population increase
Highlights: Amid rising conflict in Latin America driven by drug cartels and organized crime syndicates, Brazil remains one of the largest Christian populations worldwide, with strong Catholic roots. Over 185 million people are Christian.

Philippines

Region: Southeast Asia
Growth Factors: Strong cultural ties to Christianity
Highlights: Despite some regional outbreaks of extremism, the Philippines has a vibrant Christian population, with an emphasis on charismatic faith communities that continue to grow. Nearly 80% of the country identifies as believers.

Ethiopia

Region: Africa
Growth Factors: High birth rate, evangelical outreach
Highlights: Ethiopia is experiencing a resurgence in Christian growth, driven by high birth rates and strong evangelical presence. Almost 20% of the population is Christian.

United States

Region: North America
Growth Factors: Evangelical movements
Highlights: The United States remains one of the largest Christian countries in the world, with growth among non-denominational groups. Younger people are also being drawn back to church.

Kenya

Region: Africa
Growth Factors: Youth interest, high birth rate
Highlights: Amid challenges of displacement caused by extremist violence, floods, and more, Kenya’s youthful population is drawn to Christianity, contributing to steady growth in Christian groups. By 2050, Kenya could have as many as 95 million Christians.

South Korea

Region: East Asia
Growth Factors: Evangelical movements
Highlights: South Korea has a high percentage of Christians, particularly among urban professionals, and is known for its strong missionary influence. 20% are Christian, compared to 17% Buddhist. Global Christian Relief has assisted North Korean defectors as they arrive in South Korea and hear the gospel for the very first time. We invite you to read Dongwon’s story of faith on the GCR blog.

Mexico

Region: Latin America
Growth Factors: High birth rate, evangelical growth
Highlights: Amid heightened attacks on outspoken church leaders who condemn the nation’s drug cartel violence, Mexico has seen rapid growth in evangelical movements.

Uganda

Region: Africa
Growth Factors: High birth rates, evangelical missions
Highlights: Christianity is expanding quickly in Uganda, where 82% of the population identifies as Christian.

Vietnam

Region: Southeast Asia
Growth Factors: Missionary efforts, underground churches
Highlights: Vietnam’s Christian population is growing through underground churches, largely due to the influence of charismatic Christianity.

Ghana

Region: Africa
Growth Factors: Charismatic growth, youth interest
Highlights: Ghana has a fast-growing Christian community–the fastest growing religion in the country, with charismatic Christian groups leading the way.

Argentina

Region: Latin America
Growth Factors: Charismatic expansion
Highlights: Christianity is thriving in Argentina, particularly through evangelical churches.

Iran

Region: Middle East
Growth Factors: Underground church networks
Highlights: Iran’s Christian community, while small, is growing rapidly despite government opposition. Many are drawn to Christianity’s message of hope and freedom. Global Christian Relief and our partners have worked to distribute Bibles to new converts and seekers in Iran. Learn more on the GCR blog.

Mozambique

Region: Africa
Growth Factors: High birth rate, missionary activity
Highlights: Christianity is expanding in Mozambique, particularly among young people.

Tanzania

Region: Africa
Growth Factors: Youth engagement, evangelical missions
Highlights: The Christian population is increasing steadily in Tanzania, where it is one of the most prominent religions.

Russia

Region: Eastern Europe
Growth Factors: Missionary influence, evangelical movements
Highlights: Despite Russian President Vladimir Putin’s attacks on the church during its war with Ukraine, Russia’s Christian population is growing.

Colombia

Region: Latin America
Growth Factors: evangelical growth
Highlights: Despite Colombia’s notorious and violent drug cartels, Colombia has a vibrant Christian scene, with Christian groups showing impressive growth rates.

Causes for Growth

Rapid, grassroots-style Movements: Christianity is spreading rapidly in regions like Latin America and Africa, these grassroots movements is attracting new believers with its dynamic and personal approach to faith.
Birth Rate and Population Growth: The rate of population growth in the Global South is contributing to larger Christian populations. African nations, in particular, have high birth rates that add to the growth of Christianity.
Urbanization and Education: As more people move to cities and have access to education, Christianity has gained traction in urban settings, especially among young professionals and the educated middle class. Global Christian Relief and our partners are building new schools in places like Nigeria, where displaced children lack access to education.

Regional Highlights: Latin America, Africa, and Asia

Latin America

The Christian population in Latin America is experiencing steady growth spreading across countries like Brazil, Mexico, and Colombia.

Africa

The Christian population is projected to be the largest on the continent by 2050, driven by high birth rates, population growth, and the expansion of charismatic movements.

Asia

Countries like China, India, and Indonesia have some of the world’s fastest-growing Christian populations, with house churches, underground networks, and missionary influence playing key roles.

Looking Ahead: Christianity by 2050

According to the “Center for the Study of Global Christianity”, Christianity’s growth rate will continue to rise in the Global South, with projections estimating nearly three billion Christians by 2050. As we look to the future, it’s clear that these top 20 countries will shape the landscape of global Christianity for generations to come.