From Michigan. We say Pop. You ask for soda there and you may wind up with box of Arm and Hammers. ...lol
When I lived in Houston, all soda was referred to as "coke" and the soda vending machine was called a "Coke machine"
ohhhhhh That explains it. I was always angry about people constantly offering me coke. I do not like coke cola whatsoever. Dr. Pepper all the way.