Do self-identified Christian fundamentalists have their own geographical communities?

Do self-identified Christian fundamentalists have their own geographical communities? Surely, it is known that the "Fundamentalist Latter-Day Saints Church" has their own geographical communities, with the headquarters stationed in Utah. There are a couple of isolated Amish communities in the American Northeast (not saying they are fundamentalist!). Since Christian fundamentalists are known for their antagonistic isolation away from the mainstream culture, it becomes plausible that these people may have developed their own geographical communities somewhere.