Jews Lead the List in Irreligiosity
From a new Gallup poll:
Of the religions surveyed in the poll, Jews were found to be the least religious: Only 38 percent of the worldwide Jewish population considers itself religious, 54 as non-religious and 2 percent as atheists. In comparison, 97 percent of Buddhists, 83 percent of Protestant Christians and 74 percent of Muslims consider themselves religious.
See more here.
For the full table see pages 19-20 of the poll results.