The New York Times website as a fun little quiz that asks a series of questions and comes up with a heat map showing which areas of the United States your dialect most resembles. I took the test and all of the United States was stone cold blue with the notable exception of the Greater New York area. It said that my speech most resembled the speech in Paterson, Newark, New York City and Yonkers. My parents grew up in Paterson, I went to high school in the same county as Newark and lived for many years in New York City. Yonkers is the only town on the list to which I have no connection.
Questions are things like “What do you call a sweetened carbonated beverage?” I remember when my college roommate from California suggest we go get a pop and everyone just stared at her.