Top 11 Best-Selling Products at Costco You Should Know

July. 10,2025

Discover Costco's top 11 best-sellers, including bacon, maple syrup, frozen pizzas, batteries, nuts, medications, cooking sprays, cakes, fuel, canned tuna, and baby formula. These products offer quality and savings, making them must-haves for smart shoppers. Explore the key categories and popular items that define Costco's shopping experience, ensuring you get the best deals and value for your money at this wholesale giant.

Top 11 Best-Selling Products at Costco You Should Know

Top 11 Best-Selling Items Available at Costco

Costco is a leading warehouse retailer, perfect for families seeking budget-friendly options for household essentials and more. Membership grants access to exclusive deals, discounts, and gift cards. Understanding Costco’s variety of product categories is essential before joining. Many products are offered under Kirkland Signature, Costco’s private label. Continue reading to discover the platform’s most popular products and categories that shoppers love.

Automotive and tires

Kids’ toys and baby products

Clothing, jewelry, and accessories

Electronics and gadgets

Furniture

Home goods

Home improvement supplies

Groceries and household items

Flowers and floral arrangements

Health, beauty, and personal care

Gifts and event tickets

Office supplies

Outdoor and patio furniture

Sports and fitness gear

Pet supplies

Memorial products

Special featured sections

Top 11 Popular Products at Costco

Bacon:

 A staple in many kitchens, Kirkland Signature bacon is flavorful and available gluten-free. It’s priced lower than its competitors, saving about $1.50 per pound. If bacon is a weekly staple, adding it to your Costco shopping trip makes sense.

Maple syrup:

Another top seller, organic maple syrup can be bought at just 56 cents per ounce—offering some of the best prices around.

Frozen pizza:

Members can purchase a pack of four frozen pizzas at an incredibly low price directly from Costco warehouses.

Kirkland batteries:

These batteries are highly popular. Buying in bulk grants discounts, significantly reducing the cost compared to retail stores.

Nuts:

Costco offers premium-quality nuts in bulk—30 packs for only $20—making for a healthy snack option.

Medications:

Costco provides medications at excellent rates, accessible to all shoppers whether members or not, with substantial discounts.

Cooking spray:

Costco’s cooking spray is priced at only 15 cents per ounce, far cheaper than elsewhere.

Half-sheet cake:

This affordable cake is priced at just $10, roughly half the cost of similar-sized cakes at other stores.

Gasoline:

Fuel at Costco tends to be less expensive than competitors, offering savings for drivers.

Canned tuna:

A popular item, 16 cans of Kirkland Signature tuna are available for $35.

Baby formula:

Kirkland Signature baby formula costs only 50 cents per ounce, providing significant savings.