Protestantism is the largest group of
Christianity in the United States, with its combined
denominations accounting for about half the country's population. The United States is also the home for 20% of the world's Protestants, or some 150 million people, making it the country with the largest number of Protestants.
Baptists account for about one third of American Protestants.
Southern Baptist Convention is the largest single Protestant denomination in the United States.