I found this interesting survey that indicates which parts of the United States your dialect matches the closest. This can also work for non-Americans as well, as it gives perspective as to what dialect you are closest to. Just do it and see for yourselves.
Click here for the survey.
My results showed that my top 3 cities are Sacramento, Modesto and Oceanside, CA. This is strange because I have never been to California, nor is anyone I know IRL from there.
I'm too lazy to post my map, but feel free to post yours.