I found this cool quiz on The shaping of myself towards a more grown-up form. Here is the variety of American English that I speak:

Your Linguistic Profile:

70% General American English
10% Upper Midwestern
10% Yankee
5% Dixie
5% Midwestern

(Note to Melissa: It’s pronounced “Car-mul”, not “Care-a-mell”.) :-)

Here’s the quiz if you’d like to take it yourself: What Kind of American English Do You Speak?

Let me know how you score!