A comprehensive demographic study of more than 200 countries finds that there are 2.18 billion Christians of all ages around the world, representing nearly a third of the estimated 2010 global population of 6.9 billion. Christians are also geographically widespread – so far-flung, in fact, that no single continent or region can indisputably claim to be the center of global Christianity.
A century ago, this was not the case. In 1910, about two-thirds of the world’s Christians lived in Europe, where the bulk of Christians had been for a millennium, according to historical estimates by the Center for the Study of Global Christianity.2 Today, only about a quarter of all Christians live in Europe (26%). A plurality – more than a third – now are in the Americas (37%). About one in every four Christians lives in sub-Saharan Africa (24%), and about one-in-eight is found in Asia and the Pacific (13%).
Almost half (48%) of all Christians live in the 10 countries with the largest number of Christians. Three of the top 10 countries are in the Americas (the United States, Brazil and Mexico). Two are in Europe (Russia and Germany), two are in the Asia-Pacific region (the Philippines and China), and three are in sub-Saharan Africa (Nigeria, Democratic Republic of the Congo and Ethiopia), reflecting Christianity’s global reach.