As of recent data around 2023-2025, there are approximately 2.4 billion Christians worldwide. This makes Christianity the largest religion globally, representing nearly one-third of the world’s population

. Key points about the global Christian population include:

• Christianity is widespread across continents, with significant populations in the Americas, Europe, Sub-Saharan Africa, and parts of Asia and Oceania

• The largest Christian denominations are the Catholic Church (about 1.3 billion members), Protestantism, and the Eastern Orthodox Church

• The countries with the largest Christian populations include the United States (~230 million), Brazil (~180 million), Mexico (~112 million), Nigeria (~107 million), and Russia (~100 million)

• The Christian population has grown substantially over the last century, from about 600 million in 1910 to over 2 billion by 2010, with projections estimating around 2.9 billion by 2050 due to growth mainly in Africa and Asia

In summary, roughly one-third of the global population identifies as Christian, totaling about 2.4 billion people as of the early 2020s