I think its a west coast thing as well. I grew up only ever hearing it called pop.

In CA, it's Soda. I have some friends from Colorado who call it pop, although that could be their area of Colorado.

60% General American English
35% Dixie
5% Yankee
0% Midwestern
0% Upper Midwestern

I've always heard people around Kentucky calling it "pop" but I just call the drink whatever it really is. If its a Coke I'll call it Coke. If its a Dr. Pepper I call it Dr. Pepper. Not once have I ever referred to the entire caffeinated (or non-caffeinated, depending on what you like) genre as "Pop" "Soda" or "Coke."

Canadian-English :p...

80% General American English
5% Dixie
5% Midwestern
5% Upper Midwestern
5% Yankee

Your Linguistic Profile:

80% General American English
10% Dixie
10% Yankee
0% Midwestern
0% Upper Midwestern

Glad we could help. :D

"Coke" as a catch-all is definitely a Southern, or Southeastern, thing.

I grew up hearing "Would you like a Coke?" An affirmative answer might get, "What kind -- we have Pepsi, RC and Mountain Dew?"

75% General American English
15% Dixie
10% Yankee
0% Midwestern
0% Upper Midwestern

70% General American English
25% Dixie
5% Yankee
0% on the last two

Sounds pretty accurate to me!;)

Semi Normal, I guess!
 

45-General
20-Dixie
15-Yankee
10-MidWest
5-upper midwest.

Man of all seasons!:D

Its such an odd concept to me. Growing up in my household we never ever said things like that. :) Its always been Mountain Dew, Pepsi, Diet Coke, Diet Cherry Vanilla Dr. Pepper, whatever. Never an abbreviated version.

Your Linguistic Profile:
50% General American English
30% Yankee
20% Dixie
0% Midwestern
0% Upper Midwestern

Your Linguistic Profile:
60% General American English
25% Dixie
10% Yankee
5% Upper Midwestern
0% Midwestern

Your Linguistic Profile:
50% General American English
15% Dixie
15% Yankee
10% Midwestern
10% Upper Midwestern