I only lived in Michigan for a year, but Michiganian sounds weird to me. I think Michigander is the better term.
Norwegian. 
Nope, I agree with brossa. Y’all are FIBs.
Well, of course it’s Oregonians (OR-uh-GO-nee-ans). And it’s OR-uh-g’n, not OR-ree-GAWN, dammit. (Well, except for that city in Wisconsin.)
But when I lived up north, in Washington, I always called 'em “Oreganos.” 
I like Oregon-isms! I’m changing my name.
I really thought (and I lived there a while) Ohioans were Ohesians. I can’t spell it; It would be pronounced Oh-HEE-shins.
104 posts, and no love for North Dakota–you all should be ashamed.
The people from North Dakota are the salt of the earth, the common clay
of the new west… you know, morons.
Props to Mel Brooks!