Gene Expression has some data from the Pew Religious Landscape survey:

When it comes to questions of right and wrong, which of the following do you look to most for guidance?

The answers included Religion/Philosophy and reason/Practical experience and common sense/science/and don’t know.

Jehovah’s Witnesses were were the most likely to report that religion guided their moral beliefs (73 percent) followed by Mormons (58 percent) and evangelicals (52 percent) as did 33 percent of Muslims. Near the bottom: Mainliners (24 percent), Orthodox (25 percent), and Catholics (22 percent). Jews (10 percent), Hindus (9 percent), and Buddhists (4 percent) were the least likely to report turning to religion for moral guidance.

The answers to this survey explains a lot about American politics, actually. (But the most surprising thing to me is Pew didn’t think to include “Mom” or at least “family and friends” in the list of possible sources).

Religious teachings & beliefs Philosophy & reason Practical experience & common sense Scientific Information Don’t know/ Refused Evangelical 52 4 39 2 3 Mainline 24 9 59 4 4 Historically Black 43 4 47 3 3 Catholic 22 10 57 7 5 Mormon 58 4 33 2 3 Orthodox 25 11 52 8 5 Jehovah’s Witness 73 3 19 1 5 Other Christian 19 25 42 7 4 Jewish 10 15 60 9 6 Muslim 33 10 41 14 2 Buddhist 4 27 51 12 5 Hindu 9 15 55 18 4 Other Faiths 5 25 58 8 4 Unaffiliated 6 16 66 10 3