The share of Americans who do not identify with a religion has grown dramatically and now surpasses every affiliation except evangelical Protestants, according to a survey released Tuesday.
The Pew Research Center found that 22.8% of Americans were religiously unaffiliated last year — up from 16.1% in 2007. That group includes atheists, agnostics and those who chose “nothing in particular.”
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Evangelical Protestants made up 25.4% of the adult population, down slightly from 26.3% in 2007. Catholics declined to 20.8% from 23.9%, and mainline Protestants to 14.7% from 18.1%.
In all, roughly seven in 10 Americans identified with some branch of Christianity, down from almost eight in 10 in 2007. The share of Americans who identify with a non-Christian faith grew to 5.9%, with pronounced growth among Muslims and Hindus.
Pew found that the drop in Christian affiliation held for all age groups but especially among young adults.








