Where Is Buttermilk In Walmart + Other Grocery Stores? A very rare ingredient is buttermilk. But when it is, it can be almost impossible to find huge stores like Walmart. If you are interested in knowing where buttermilk is sold at Walmart, or any other grocery store, continue reading. Walmart, Where Can I Find Buttermilk? Walmart has buttermilk located in the refrigerated dairy aisle. This section is normally found next to cream products and milk. Additionally, some Walmarts stock buttermilk next to the butter products. Walmart’s dry food aisles will have buttermilk powdered items such as pancake mixture. For other…