Mostly a bunch of freaks that live in Utah. They are so much into religion that they turn into freaks. They also beleive their religion which is totally untrue and doesn't make any sense at all. If you want to know more, watch the south park episode All About Mormons.
Cartman: go kick his ass Kyle
Kyle: ummmm Ok
Kyle: I'm going to kick your ass .... bitch
Mormon: oh i get it ur from the cool group and u have to beat me up, well ok then do wat u gotta do
Kyle: Stop it, stop being so nice
Kyle goes back to cartman
Cartman: What the hell was that Kyle? Whyt didnt u kick his ass?
Kyle: Im having dinner tonight with him