Christians now account for fewer than half of the public. Today, only 43% of Americans identify as white and Christian, and only 30% as white and Protestant, according to a PRRI poll. In 1976, roughly eight in ten (81%) Americans identified as white and identified with a Christian denomination, and a majority (55%) were white Protestants.
America’s youngest religious groups are all non-Christian. Muslims, Hindus, and Buddhists are all far younger than white Christian groups. At least one-third of Muslims (42%), Hindus (36%), and Buddhists (35%) are under the age of 30. In contrast, Christian groups are aging. Slightly more than one in ten white Catholics (11%), white evangelical Protestants (11%), and white mainline Protestants (14%) are under 30.