Pop vs. Soda
Carbonated beverages are regionally known as:
“Coke”, in most of the south including New Mexico, and much of Eastern and Southern Oklahoma. Some older generations of southerners refer to soft drinks as “dope”
“Pop” in most of the upper Midwest and into the western part of the Northeast, including such cities as Cleveland, Ohio, Pittsburgh, Pennsylvania, Detroit, Michigan, Chicago, Illinois, Minneapolis- St. Paul, Minnesota, Erie, Pennsylvania and Buffalo, New York; west up to and including the Pacific Northwest and as far south as the Northern half of Oklahoma. The majority of the State of Michigan (including the Upper Peninsula), especially the Metro Detroit area specifically calls soft drinks “Pop”. (Faygo, a brand of soft drink made in Detroit is an example of this). In the lower Midwest, such as Southern Illinois, Southern Indiana, and the Cincinnati, Ohio area, “soft drink” predominates. (Which is why the term is used in Kroger stores, which is Cincinnati based). The state of Colorado also uses the term “pop”.
“Soda” in the Northeast, the Southwest (California, Nevada, Arizona and Texas), Hawaii, and parts of South Florida (near Miami) and parts of the Midwest (around St. Louis and parts of Wisconsin, especially in the east and around Milwaukee).
“Tonic” is used all over eastern New England although the usage is becoming archaic.
“Soda pop” is used by some speakers, especially in the Mountain West.
“Drink”, “cold drink”, and “soda” are locally common in Southern Virginia and the Carolinas , spreading from there as far as Louisiana.
“Cold drink” is the phrase of choice in New Orleans, Louisiana.
At many restaurants in the U.S., one finds that the products of a single major beverage producer such as The Coca-Cola Company or Pepsi Company are available. While patrons requesting a “coke” may be truly indifferent to which cola brand they receive, the careful server will confirm intent with a question like “is Pepsi OK?” Similarly, 7 UP or Sprite may indicate whichever clear, carbonated, citrus- flavored drink happens to be at hand. The generic uses of these brand names does not affect the local usage of the words “pop” or “soda” to mean any carbonated beverage.
An interesting correlation to note in the United States is that states where “soda” is predominant toward democratic candidates in presidential elections, whereas states where “pop” or “coke” is said more often give their electoral votes to republicans, although exceptions occurred in 2004 in Oregon, Washington, Minnesota, Michigan, Illinois, Arizona and Missouri.
Source: http://en.wikipedia.org/wiki/Soda_pop
Another cool page is the pop vs. soda page. It shows a study, which you can actually participate in of which parts of the US say it what way. There is even a map. It’s pretty cool. http://popvssoda.com:2998/
In my point of view, I grew up in Cleveland, Ohio so I have always called it pop. Even when I went east to Mansfield University in Mansfield, PA I still called it pop. Granted, most of my classmates called it soda, because they were from the east. I did meet a few people from Western PA who called it pop. After looking at this map, I was pretty darn close in offering my conclusion. I always said people east of the mountains (in PA) called in soda and west of the mountains called it pop. In the map it turns out that Clearfield County PA is the border for soda and pop and looking at a map it’s where the mountains start.
After moving to Texas, I still call it pop even though most people here call it soda. I think it’s something you grew up with and will call no matter where you end up moving.