How many Christian are in America?
Christianity in the United States
A 2004 survey of the United States identified the percentages of these groups as 26.3% (Evangelical), 22% (Catholics), and 16% (Mainline Protestant).[7] In a Statistical Abstract of the United States, based on a 2001 study of the self-described religious identification of the adult population, the percentages for these same groups are 28.6% (Evangelical), 24.5% (Catholics), and 13.9% (Mainline Protestant).[18]