Where Is Baking Soda In Walmart + Other Grocery Stores? Baking soda is essential in any household, whether you are looking for baking recipes or DIY cleaning products. While you’re shopping at Walmart, you may wish to grab a top-up, but where exactly is baking soda at Walmart? Stay with me, I’ll explain! Walmart: Where can I find baking soda? Walmart customers will find baking soda for cakes and cookies in the baking aisle, next to flour and starch. Some Walmart stores also stock baking soda that can be used for cleaning, laundry and deodorizing. This aisle is next to…