Yes there are places like Juniper Creek.
See [
www.culteducation.com]
There are towns that were controlled by polygamist cults such as Hildale, Utah and Colorado City, Arizona.
The Juniper Creed group seems to be roughly based upon the FLDS and the old "prophet" and son duo a spin on deceased FLDS leader Rulon Jeffs and his son Warren Jeffs.