This is one of the best dialect quizzes I've run into. I think there was one or so questions where it did not quite have my option, but it's a really fun quiz to take to see where your language influences are in US geography.
http://www.nytimes.com/interactive/2013/12/20/sunday-review/dialect-quiz-map.html
I'm most similar to Grand Rapids (MI), Rockford (IL), and Aurora (IL). I'm least similar to Corpus Christi (TX), Little Rock (AR), and New Orleans (LA).
This, I believe, is a picture of my results: https://nyti.ms/2rMgIVT