What aisle are Marshmallows in Walmart? Marshmallows are in Aisle A18 in Walmart. Aisle A18 is in the Grocery section in Walmart. The best selling Marshmallows in Walmart are the Jet-Puffed Mini Marshmallows that cost $1.76.
If the Marshmallows you’re looking for are not available in-store at Walmart, you can go to Walmart.com and place an order to get free shipping.