Note that "Jewishness" has the meanings both of "adherence to the religion of Judaism" and "membership in the ethnic group 'Jews'". People of both groups are listed here.
... is spread out with 18.5% under the age of 18, 4.4% from 18 to 24, 20.6% from 25 to 44, 26.3% from 45 to 64, and 30.2% who are 65 years of age or older. The median age ...