A cikin wani 2009 Gallup zabe, 42% na Amirkawa sun ce sun halarci coci mako-mako ko kusan mako-mako; Figures jeri daga wani low na 23% a Vermont zuwa wani babban na 63% a Mississippi. Kamar yadda da sauran kasashen yammacin duniya, Amurka da ake zama kasa addini. Irreligionism ne girma cikin sauri a tsakanin Amirkawa a karkashin 30. Polls nuna cewa overall American amincewa a shirya addini ya kasance rage tun tsakiyar zuwa marigayi 1980s, da kuma cewa matasa Amirkawa, musamman, suna zama ƙara irreligious. A cewar wani binciken a shekarar 2012, da Protestant rabo daga Amurka yawan ya ragu zuwa 48%, ta haka kawo karshen da matsayi na farko da mafi yawan addini na Kirista.
Yahudanci (1.9%), Hindu (1.2%), Buddha (0.9%), da Musulunci (0.9%)