Costco vs. Sam's Club: An Overview

One of the biggest battles in retail is among the bulk retailers—Costco Wholesale Corp. (COST) and Walmart's Sam's Club. In the world of retail, the consumer has a lot of choices, so for a store to be successful, it often needs a unique selling point. Discount retailers like Walmart Inc. (WMT) and Dollar General (DG) offer low prices to draw in customers.

Meanwhile, Costco and Sam's Club can offer even lower prices per item by selling goods, such as toilet paper, in bulk. The caveat is that you either need a large family to eat all of the food and use all the supplies you buy, or a method to preserve it (canning or freezing). Through the years, these bulk retailers have expanded and started to offer several other items, including electronics, vehicles, and vacation packages.

These two retailers generate revenue from merchandise and product sales and membership fees. These memberships get you into the store and allow you to shop at the discounted prices online. More importantly for Costco and Sam's Club, these memberships help create store loyalty. If you're paying to be a member somewhere, you're more likely to go.

In this article, we'll look at how the business models of Costco and Sam's Club are similar, but also breakdown why they are also very different, including prices, locations, and brand selection.

  • Costco and Sam's Club have very similar business models.
  • Costco is a publicly-traded company, while Sam's Club is a subsidiary of Walmart.
  • Costco's membership fees are more expensive, but its prices are slightly lower—thanks, in part, to its private branded products (e.g., Kirkland).
  • Costco has more stores worldwide, but Sam's Club has more stores in the U.S.
  • In terms of store size, Costco's stores are almost 10% larger on average based on square footage.


Costco is considered the original bulk retailer, opening its first location in San Diego in 1976. Since then it's been selling bulk goods through its warehouse-style stores, cornering the market in many states.


Costco had 795 stores as of the end of the fiscal year 2020 (ended Aug. 31, 2020), with 552 of those in the U.S. The company has been aggressively opening new warehouse stores over the years. In the fiscal year 2020, Costco opened 16 stores, while it opened 25 in both 2019 and 2018.

In terms of states where Costco is concentrated, it has 131 stores in California, almost four times its number two state—Texas with 33. Meanwhile, the state of Washington has 32 Costco stores. Five states have no Costco stores—Arkansas, Maine, Rhode Island, West Virginia, and Wyoming.

Costco also has stores outside the U.S. This includes stores in Canada, Mexico, Japan, China, and other countries.


Costco's U.S. stores, versus the 599 Sam's Club stores—as of the end of fiscal year 2020 for each company.

Membership Fees

Costco offers two membership tiers: Gold Star and Gold Star Executive. The Gold Star membership is $60 a year and offers access to all its stores and two membership cards. The higher-level membership is the Gold Star Executive, which is $120 per year. The Gold Star Executive level includes all the perks of the Gold Star level plus a 2% cashback reward (up to $1,000) on all Costco and Costco Travel purchases. Gold Level Executive members also get other discounts and benefits and the Costco Connection magazine.

It's worth noting that Costco also offers a business-focused membership. This includes two tiers as well: Business and Business Executive. The Business level is $60 a year and includes the benefits individuals enjoy, as well as the ability to purchase for resale. Meanwhile, the Business Executive level is $120 a year includes a 2% cashback reward (up to $1,000) on purchases, as well as "additional benefits and discounts on many Costco services."

Benefits and Perks

One of the key benefits and perks of Costco's memberships is access to its fueling stations (which often offer lower prices than other fuel stations), pharmacy, photo center, and rental car options. For business customers, Costco offers partnerships with payment processing, health insurance, bottled water delivery, and check printing services.

Costco also has a co-branded credit card for members. The card, which offers tiered cashback, is considered a solid credit card for those that shop at the retailer. The card is co-branded with Citi and offers 4% cash back on the first $7,000 spent on fuel per year (1% after that), 3% on restaurants and travel, 2% on all other Costco purchases, and 1% on all other purchases. The co-branded card offered by Costco and Citi can be used anywhere credit cards are accepted.

Finally, it's worth noting that Costco sells more private branded goods than Sam's Club. As a shopper, you'll likely find more brand-name items in Sam's Club. However, Costco offers its popular private brand Kirkland in its stores. Kirkland items are often cheaper than most other products, but they're still made by big-name companies, such as Starbucks (SBUX), Duracell, and Kimberly-Clark (KMB).

Costco's private brand products, such as Kirkland, are cheaper than name brand products but are made by many well-known companies, such as Starbucks for their coffee and health care products company Perrigo for their formula.


Costco is a publicly-traded company under the ticker symbol COST. It has a market value of over $171.3 billion as of Nov. 17, 2020. It has several smaller subsidiaries, such as Costco Travel and Kirkland brand products, but aside from that, the company has not branched out into a broad range of other brands and stores.

Revenues for the fiscal year 2020 were $163 billion, up from $149 billion in the previous year. As well, profits came in at $4 billion, up just over 9% year-over-year (YOY). Financial positioning-wise, Costco is well-positioned. It had $12.3 billion in cash and cash equivalents at the end of fiscal 2020, while other liabilities—which include long-term debt and lease obligations—were $21 billion. Its total assets total $55.6 billion, which includes almost $22 billion in plant, property, and equipment (PP&E).

Sam's Club

Sam's Club is nearly as old as Costco, opening its first store in 1983 in Midwest City, Okla. As far as business models, they're very similar—both sell memberships to a store where customers buy bulk items. One key difference is that Sam's Club did not expand to the same areas and product categories as Costco.


Sam's Club operates 599 stores across the U.S. as of the end of the fiscal year 2020 (ended Jan. 31, 2020). Unlike Costco, which has been aggressively opening stores, Sam's Club has kept its store count relatively steady over the last few years. Its store count has been relatively stable over the last couple of years after closing 60 stores in fiscal 2018.

Its state with the largest store concentrations are Texas with 82 stores, Florida with 46, and California with 29. Meanwhile, Sam's Club has no stores in six states—Alaska, Massachusetts, Oregon, Rhode Island, Vermont, and Washington.

Membership Fees

Like Costco, Sam's Club offers two membership levels. The first is called Club, which is $45 per year. The Club level includes access to all its warehouse clubs, as well as the ability to add additional cards. Then there's the higher tier Plus membership for $100 a year that has all the benefits of Club, including other perks—2% cashback on certain transactions (up to $500), free shipping, early store access hours, and access to its pharmacy and optical services. Overall, both of Sam's Club's membership tiers are cheaper than what Costco offers.

Benefits and Perks

Key benefits of a Sam's Club membership include access to its stores, as well as its fuel stations and tire and battery centers. Meanwhile, the higher tier membership offers specific discounts for certain services, such as 20% off eyeglasses at its optical centers and up to 30% off branded drugs at its pharmacies.

Sam's Club also offers a credit card as well. Sam's Club's MasterCard is issued by Synchrony Bank and can be used everywhere credit cards are accepted. The perks of the card include 5% on the first $6,000 in fuel purchases per year, then 1% thereafter. As well, the card offers 3% cash back on dining and travel and 1% on all other purchases.


Sam's Club generated $58.8 billion in sales during the fiscal year 2020, less than half of Costco's sales. However, Sam's Club's parent company, Walmart, boasts a $431 billion market cap, more than 2.5 times Costco's market cap.

Sam's Club's fiscal 2020 sales rose 1.6% YOY. Walmart does not break out where sales come from (i.e., product sales versus membership sales). The Sam's Club segment has $13.5 billion in assets, up from $12.9 billion at the end of fiscal 2019.

Key Differences Between Costco and Sam’s Club

To start, Costco is a publicly-traded company that trades on the Nasdaq under the ticker symbol COST. Sam's Club is a subsidiary of Walmart, which trades under the ticker WMT on the New York Stock Exchange.

Costco's membership fees are more expensive than Sam's Club, granted it's only $15 and $20 a year more for the basic tier and top tier, respectively. Costco has more stores than Sam's Club—almost 200 more, although Sam's Club has more U.S. stores.

Costco has a greater international presence, while Sam's Club stores are limited to the U.S. and Puerto Rico. California has the most Costco stores, while Texas has the most Sam's Club stores. Rhode Island is the only state with neither a Costco nor Sam's Club.

When it comes to sales, Costco generates almost three times the amount of sales. Product-wise, Sam's Club offers more name brands, while Costco has more private brands. For store size, Costco has slightly larger stores at an average of 146,000 square feet, while Sam's Club's average 133,000.

Costco appears to be growing faster, from both a store count and revenue perspective. Sam's Club closed several stores a couple of years ago—roughly 10% of its store count at the time. Meanwhile, Costco has been on a steady run of net store openings.

Both stores have similar return policies, with no time limit for products, except electronics, which generally have a 90-day window.

Costco does not accept American Express, Mastercard, or Discover credit cards in stores. On, shoppers can use Mastercard or Discover cards, but not American Express cards.

Which One Is Better, Costco, or Sam's Club?

Sam's Club has a cheaper membership fee for both its basic tier and its premium tier. However, Costco has more stores overall, although Sam's Club has more stores in the U.S.

Does Costco or Sam's Club Have Better Prices?

Overall, the prices at Costco tend to be cheaper. However, Sam's Club has a greater selection of name-brand products.

Can I Use My Costco Membership at Sam's Club?

No, Costco memberships only work at Costco stores and online at The same goes for Sam's Club, where its membership is limited to Sam's Club stores and online.

Is Sam’s Club Cheaper Than Walmart?

Overall, Sam's Club is cheaper per unit of product. However, with Sam's Club, you're spending more overall because you're buying more of a product (i.e., in bulk). With Sam's Club, you might spend $0.45 per roll of toilet paper, but you're buying 45 rolls, so you're spending $20.25. With Walmart, you can spend $8.57 for the same toilet paper, but 12 rolls, coming out to $0.71 per roll.

The Bottom Line

The typical customer for warehouse retailers like Costco and Sam’s Club are those that like to save money buying in bulk. Buying these bulk items, however, does not translate well to online shopping. Delivering bulk items can be cumbersome.

Still, shopping at these warehouse locations can be prohibitive for certain customers that don’t have the storage space (e.g., freezer size to accommodate buying in bulk) or money for what is a more expensive shopping trip, versus Walmart (WMT), for example. The average transaction total is higher at bulk warehouse retailers versus discount retailers because, although you’re getting cheaper per unit prices, you’re buying more overall.

For many shoppers, it'll come down to which store is closer to their home. Other than that, there's not much difference in terms of membership prices or product prices. Part of the selection process between the two will come down to the shopping experience—e.g. as a Costco consumer, you can get the $1.50 hot dog combo. However, neither Costco nor Sam's Club offers trial memberships, so if you want to test out either you'll have to tag along with a member.

Note, some Costco and Sam's Club stores are laxer when it comes to checking for membership cards when you enter the store. Although you'll still need one to checkout, you may be able to do a test-run and get a feel for your local store with a walk-through.