State Snob 

someone who feels that their state is better then all other states to the point that they have no interest in visiting any other state and in some cases are even OPPOSED to visiting other states because they have deemed them lesser than their own (with the exception of their current state of residence).

“The Californian had no interest in traveling to see me in Boston, and that’s when I realized he was a state snob.”

State Snob by Apoochy June 16, 2020