Generic Names for Soft Drinks by County

This US map uses color to depict the most popular term used in every county of the US — ‘pop’, ‘coke’, ‘soda’ or something else. The gross regional differences are pretty clear but what grabs my attention are the anomalies. Why are there single counties in the middle of Nebraska, North Dakota, Colorado and Idaho, for example, where ‘soda’ predominates in the midst of ‘pop’? And what is going on in the large, circumscribed regions of Nevada, northern Minnesota and New Mexico where some other term predominates, as well as scattered counties in North Carolina and Texas? Anyone from any of those regions reading? How do you refer to soft drinks there?? (via Incoming Signals)