These Are The Countries With The Largest Christian Populations

There are 2.2 billion Christians in the world, which means one out of every four people is a Christian.

The visualization, via Visual Capitalist’s Pallavi Rao, compares the 25 countries with the largest Christian populations, revealing how demographic trends, migration, and conversion have shaped Christianity’s current global footprint.

The data for this ranking comes from the CIA World Factbook, Pew Research and UN World Population Prospects.

Estimated religious shares between 2020–2024 from the first two sources are applied to 2025 population figures to arrive at an estimated for number of Christians in each country.

The Americas Are Christianity Central

With more than 219 million Christians, the U.S. remains the single largest Christian nation.

Although its Christian share has fallen for decades, the overall population continues to grow, keeping the country firmly at the top of the list.

Note: Includes all denominations.

Brazil (169 million) and Mexico (118 million) rank second and third.

Both countries have historically been Catholic strongholds, though Brazil has witnessed a rapid rise in evangelical denominations over the past generation.

Together, the three giants account for nearly a quarter of all Christians worldwide.

Sub-Saharan Africa’s is Reshaping the Christian Faith

Nigeria, the Democratic Republic of the Congo (DRC), Ethiopia, and Kenya illustrate Christianity’s fast-growing presence south of the Sahara.

Nigeria alone has about 109 million Christians, almost equal to the entire population of the Philippines.

High fertility rates and youthful demographics mean Africa’s share of global Christians will keep rising well past 2050.

Most of these African nations also have large non-Christian populations.

Nigeria is almost evenly split between Christians and Muslims, while Ethiopia’s Christian majority coexists with a sizable Muslim minority.

Minority Christian Communities in Population Giants

China and India appear in the ranking despite Christians making up only 5% and 2% of their populations, respectively.

Sheer population size—over 1.4 billion people each—translates into tens of millions of believers even when Christianity is a small minority.

The presence of 72 million Chinese and 34 million Indian Christians underscores how religious minorities can still represent significant global communities.

If you enjoyed today’s post, check out Ranked: Countries With the Largest Muslim Populations on Voronoi, the new app from Visual Capitalist.