It's definitely SODA!!! I'm from the midwest and NO ONE says pop. My aunt through marriage is from Iowa, and they call it pop, and it's SO annoying. No offense, but it sounds retarded. Also, people call all soda "coke" in Kansas City, and that's not too far from me in St. Louis. What kind of coke do you want? Coke to me means the "Coca-Cola" brand, not soda in general. This whole issue is funny