From my experience obvs. Before SATW, Polandball, and all of that, I knew Scandinavia like this: Denmark had legos, Sweden had IKEA and Notch (+Minecraft in general), and Norway had Tord Eddsworld
The smallest US state, Rhode Island (1,212 square miles), has a larger population than the largest US state, Alaska (663,300 square miles), with 1.055 million residents vs. 736,732.