I'm pretty sure that you find the bulk of the Amish and Mennonites, the Scientologists (created by an American) and a fair quota of hacidic Jews in the USA. A fair few Jehovas as well. We all know that it's a very Christian country and last time I checked that was a Middle Eastern religion the same as Islam.
If you want to nit pick, all religions are foreign to the USA which used to be peopled by the tribal peoples of america.
If you wish to call it nit-picking, so be it. I would assume that the "tribal peoples of America" had a religion, or, indeed, probably religions. As far as I recall, the initial European Invasion brought Catholicism via the Spanish, and, again, as I recall, the whole reason for the "Pilgrims" going there was so that they could "do" Religion their way.
As in most parts (if not all) of the World, Religion (of whatever brand) has not brought "Peace and Harmony" to the USA. No doubt, in the future, we will "export" that feature to Space.