40% of Americans describe themselves as “very religious,” attending church regularly, and incorporating their faith into their daily lives. 29% are “moderately religious,” and 31% are “nonreligious.” Religiousness is highest in Southern states and among blacks and Mormons, and lowest among Jews.
Gallup poll

66% of adults use Facebook, and 16% use Twitter. Among people ages 18 to 29, 92% use Facebook and/or Twitter, compared with 57% of those 50 to 64.
Pew Research Center