… If the Fourth of July were a popularity contest between hot dogs and hamburgers, the hot dogs would have the edge in America. Instacart wanted to settle the hot dog vs. hamburger debate so they studied American shopping habits in the seven days leading up to July 4th last year with a particular interest in the number of hot dog and hamburger buns purchased. The data showed that more hot dog buns were purchased than hamburger buns. Interestingly, hamburgers appear to be more popular in the Northwest, Southeast, and New England. Hot dogs are king in most of the rest of the country. The Instacart data also showed that relish was the most-purchased condiment for Fourth of July, followed by mustard, ketchup and mayonnaise.