Recently, research director and Twitter user Natalie Jackson looked up the ~official~ terms for each state's residents and decided to share them with us all. BEHOLD, her findings:
After about a dozen arguments about what to call residents of certain states, I finally googled and found the U.S. Government Publishing Office Style Manual. Have fun with this, twitter.

That’s right — people from Massachusetts are called "Massachusettsans." I don’t even know how to say that word.
And like many others, "Michiganders" — er, I'm sorry, "MichiGANIANS" — are currently having an existential crisis.
Obviously, Twitter had a LOT of thoughts, jokes, clarifications, etc.:
@nataliemj10 I prefer the term "Les Missourable"
"Wyomingite" sounds like that weird food-like substance that comes from Australia.
@nataliemj10 Excuse me, we prefer to be called Florida Man and Florida Woman. We didn’t drive naked through a church with an alligator strapped to the roof of our car to be called “Floridians.”
@dansaltzstein I'd always thought we were "Connecticutters" but the official version is much more flattering.
Hawaii residents need to try harder while Hoosiers need to stop trying so hard. https://t.co/C1saisWdkF
Utahn? (And no, it's not Hawaiian, which is an ethnic group and language.) https://t.co/ggIuEyCumF
@nataliemj10 @aedwardslevy There is no such thing as a "Massachusettsan." A person from MA is either a Bay Stater or a Masshole depending on their attitude and/or driving skills (or those of the observer).
@nataliemj10 This is blatant Michigander erasure.
@nataliemj10 Nobody says "Illinoisian" they say either "Chicagoan" or "corn farmer"
@nataliemj10 Everyone in NY is a “New Yorker”? Don’t tell that to anyone in NYC…