Gallup Data on Religious Preference and Practice
About three in four Americans interviewed in 2014 name a Christian faith when asked for their religious preference, including 50% who are Protestants or another non-Catholic Christian religion, 24% who are Catholic and 2% who are Mormon....
More than half (53%) of Americans in 2014 report attending religious services at least monthly, including 41% who attend weekly or almost every week. Only one in five say they never attend religious services. These numbers reflect a slight shift to less frequent attendance compared with 2013.
