I took the 25-question version of this quiz (there used to be, and may still be, a 100-question version) and got the following:
Closest match: Stockton, CA; Albuquerque, NM; Kansas City, MO
Least close match: Grand Rapids, MI; Pittsburgh, PA; Worcester, MA
I have visited all six cities and lived in none of them, with Kansas City being the one in which I have probably spent the most time.
There is also a separate version of this quiz that deals with UK regional accents and diction and produces similar heat maps. Mine was mostly white with some red over Scotland, largely due (I think) to how I answered the gym shoe question. (I was not happy with the American version of this question, largely because I consider running, walking, and lifting weights to require separate shoes, each with its own term.)