The National Catholic Review
From CNS, Staff and other sources
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According to a new study, there are currently 2.18 billion Christians in more than 200 countries around the world, representing nearly a third of the estimated 6.9 billion 2010 global population.

The study, conducted by the Pew Research Center's Forum on Religion & Public Life, found Christians to be so geographically widespread that no single continent or region can indisputably claim to be the center of global Christianity.

The Pew study, "Global Christianity: A Report on the Size and Distribution of the World's Christian Population," cites that 100 years ago, two-thirds of the world's Christians lived in Europe but today only about a quarter of all Christians live there. More than one-third of Christians reside in the Americas; about a quarter live in sub-Saharan Africa and 13 percent live in Asia and the Pacific.

The data indicates that during the past 100 years, the number of Christians around the world has more than tripled from historical estimates of approximately 600 million in 1910 to more than 2 billion today. But the world's overall population has also risen rapidly, from an estimated 1.8 billion in 1910 to 6.9 billion in 2010. As a result, Christians make up about the same portion of the world's population in 2010 (32 percent) as they did a century ago (35 percent).

The study also reveals that although Europe and the Americas are still home to a majority (63 percent) of the world's Christians, that share is much lower than it was in 1910 when it was 93 percent. In the past 100 years, the number of Christians grew significantly in sub-Saharan Africa and the Asia-Pacific region.

The study also breaks down where Catholics—numbering 1.1 billion worldwide and half of the global Christian population—reside.

Brazil, with 134 million Catholics, has the world's largest Catholic population, which totals more than the number of Catholics in Italy, France and Spain combined. Other countries with the highest percentages of Catholic populations include: Mexico, the Philippines and the United States. The 10 countries with the largest number of Catholics contain more than half of the world's Catholics.

The rest of the global Christian population breaks down to: Protestants 37 percent; Orthodox Christians 12 percent; other Christians such as Mormons and Jehovah's Witnesses 1percent.

Christians are by far the world's largest religious group. Muslims, the second-largest group, make up a little less than a quarter of the world's population, according to previous studies by the Pew Forum.

Although Christianity began in the Middle East-North Africa, that region today has both the lowest concentration of Christians -- about 4 percent -- and the smallest number of Christians (about 13 million) of any major geographic region.

The study provides data on the world's Christian population by region, country and tradition and is based on about 2,400 sources, including census figures and nationally representative population surveys.