But most folks still have a favorite grocery store they use because of price or convenience. You might be surprised to learn what chain is the most popular grocery store in Louisiana. But if you look at a different set of numbers, you get different results on the most popular grocery store. Get our free mobile appMost Popular Grocery Stores Based on Reviews and Web SearchesIf you look at a different set of numbers from 24/7 Tempo, you will find different names on the list of popular grocery stores. What's the Most Popular Grocery Store in U.S.?