I had no idea. Growing up in the Maritimes, I knew that Mainers called it soda but I thought that there was a uniformity to it, no doubt enforced by a federal statute. But it seems that different areas use different words. Hard by the Nevada-Utah border there appears to be three counties next to each other that call it pop, soda and coke respectively generically. What is the "other" word used in one county of northern Minnesota surrounded by hard core pop-ists.
Via Ian's blog. Lovely graphical representation of information.