re: How many different dialects would you say are in America?

I can pick it out if I hear someone on TV, in a restaurant in Charleston, the mall in Dallas, etc. I guess I have been around so many, it is easy for me to pick out each one. Now, I couldn't write down the differences, but they are there for sure

The harder ones to pick up on are BR and Mandeville because, most of the time, they don't have any accent at all