- The share of Americans who say they are "absolutely certain" that God exists has dropped 8 percentage points, from 71 percent to 63 percent, since 2007, when the last comparable study was made.
- The percentage of adults who describe themselves as "religiously affiliated" has shrunk 6 points since 2007, from 83 percent to 77 percent.
- The shares of the U.S. adult population who consider religion "very important" to them, pray daily and attend services at least once a month have declined between 3 and 4 percentage points over the past eight years.
See article here.The shift is small but statistically significant, according to the authors, given that the changes have taken place in a relatively short period of time, and the survey sample is large enough (about 35,000 U.S. adults) to be considered reliable.
Interestingly, from 2007-2014 those who identify as "religiously affiliated" became more devout while those who do not identify as religiously affiliated are becoming less devout.
Pew Research: U.S. Public Becoming Less Religious
Full report here.