<P> The majority of U.S. adults self - identify as Christians , while close to a quarter claim no religious affiliation . According to a 2014 study by the Pew Research Center , 70.6 % of the adult population identified themselves as Christians , with 46.5 % professing attendance at a variety of churches that could be considered Protestant , and 20.8 % professing Catholic beliefs . The same study says that other religions ( including Judaism , Buddhism , Hinduism , and Islam ) collectively make up about 6 % of the population . According to a 2012 survey by the Pew forum , 36 % of U.S. adults state that they attend services nearly every week or more . According to a 2016 Gallup poll , Mississippi ( with 63 % of its adult population described as very religious , saying that religion is important to them and attending religious services almost every week ) is the most religious state in the country , while New Hampshire ( with only 20 % of its adult population described as very religious ) is the least religious state . </P>
<P> The majority of U.S. adults self - identify as Christians , while close to a quarter claim no religious affiliation . According to a 2014 study by the Pew Research Center , 70.6 % of the adult population identified themselves as Christians , with 46.5 % professing attendance at a variety of churches that could be considered Protestant , and 20.8 % professing Catholic beliefs . The same study says that other religions ( including Judaism , Buddhism , Hinduism , and Islam ) collectively make up about 6 % of the population . According to a 2012 survey by the Pew forum , 36 % of U.S. adults state that they attend services nearly every week or more . According to a 2016 Gallup poll , Mississippi ( with 63 % of its adult population described as very religious , saying that religion is important to them and attending religious services almost every week ) is the most religious state in the country , while New Hampshire ( with only 20 % of its adult population described as very religious ) is the least religious state . </P>
what is the largest religious group in the united states
what is the largest religious group in the united states
Christians
Christians