I'm from Stearns county Minnesota.  We are the "Alabama" of Minnesota and get picked on by the neighboring counties for being full of inbred rednecks.  Sad part is that it's true.  Go up to the grandparents and greatgrandparents and you'll find sibling and cousin marriages are common.  The area was only settled by a few families up until the 1900s and so there wasn't really a lot of options.

The unofficial county saying is "you can't swing a dead cat without hitting a Whitcomb" because their family is so prolific (and accident prone - smart does NOT run in the family)