From the Solidly Secular to Sunday Stalwarts, a look at our new religious typology - Pew Research Center:

Most American adults identify with a religion, describing themselves as Protestants, Catholics or Jews, to name just a few examples. But a new Pew Research Center analysis looks at beliefs and behaviors that cut across many religious identities, producing a new and revealing classification, or typology, of religion in America. ....
http://www.pewresearch.org/fact-tank/2018/08/29/religious-typology-overview/