My name is Jessica Kniffin, I live in Salt Lake City, there seem to be no other Kniffins in Utah. I am originally from Arizona, there are quite a few kniffins there, all of which are my relations. Everyone is mentioning New York Kniffins, I don't know if it is helpful to anyone, but some Kniffins moved out west. I also have Kniffin relations in Kansas City Missouri. Let me know if anyone wants more info. on the western Kniffins.