From the  New York Times :    The USA has 63% Christians, a decline of 15% in 18 years: However, people have stopped leaving churches en masse, according to   a new study released   by Pew Research. Further from the  Pew Research Center : 22%  of Americans are categorized as   spiritual but not religious (SBNR)  because they say they think of themselves as spiritual or they consider spirituality very important in their lives, but they neither think of themselves as religious nor say religion is very important in their lives. 58%  of Americans fall into an overall or   “NET” Religious   category because they say they think of themselves as religious or they consider religion very important in their lives. This group can be subdivided into U.S. adults who are   both religious and spiritual   (48%) and those who are   religious but not spiritual   (10%) 21%  of Americans are categorized as   neit...