The changing nature of Jewish identity stands out sharply when the survey’s results are analyzed by generation. Fully 93% of Jews in the aging Greatest Generation identify as Jewish on the basis of religion (called “Jews by religion” in this report); just 7% describe themselves as having no religion (“Jews of no religion”). By contrast, among Jews in the youngest generation of U.S. adults – the Millennials – 68% identify as Jews by religion, while 32% describe themselves as having no religion and identify as Jewish on the basis of ancestry, ethnicity or culture.
This shift in Jewish self-identification reflects broader changes in the U.S. public. Americans as a whole – not just Jews – increasingly eschew any religious affiliation. Indeed, the share of U.S. Jews who say they have no religion (22%) is similar to the share of religious “nones” in the general public (20%), and religious disaffiliation is as common among all U.S. adults ages 18-29 as among Jewish Millennials (32% of each).
SOURCE: Pew Research Center – http://www.pewresearch.org/religion