The Warehouse Club Decision: Costco or Sam's Club?
With over 120 million American households holding warehouse club memberships, the choice between Costco and Sam's Club is one of the most common consumer decisions in the country. Both clubs raised their membership fees in 2026, making it more important than ever to understand which one delivers better value for your money.
Membership Costs (2026)
- Costco Gold Star: $65/year (up from $60)
- Costco Executive: $130/year (includes 2% cash back on purchases, up to $1,250/year)
- Sam's Club: $50/year (up from $45)
- Sam's Club Plus: $110/year (includes 2% cash back on purchases, up to $500/year)
Sam's Club has a $15/year advantage at the basic tier and a $20 advantage at the premium tier. But membership cost is just one factor.
Price Comparison: We Checked 30 Items
We compared prices on 30 common items at both warehouses. The results:
- Costco was cheaper on 18 items (60%)
- Sam's Club was cheaper on 10 items (33%)
- 2 items were priced identically
- Average price difference: Costco was 4.2% cheaper overall
Costco's pricing advantage was most pronounced on organic and premium products, fresh meat, and Kirkland Signature items. Sam's Club won on some name-brand packaged goods and cleaning supplies.
Store Brand Quality
Costco's Kirkland Signature is widely regarded as one of the best store brands in retail. Independent testing consistently rates Kirkland products as equal to or better than name brands across dozens of categories — from olive oil and vodka to laundry detergent and batteries.
Sam's Club's Member's Mark has improved significantly in recent years and now offers solid quality across most categories. However, in blind taste tests and quality comparisons, Kirkland still holds an edge in most food and beverage categories.
Shopping Experience
Costco advantages:
- Consistently better product curation — fewer SKUs but higher quality on average
- Legendary return policy (nearly unlimited on most products)
- Better prepared foods section (the $1.50 hot dog combo remains unchanged)
- Treasure-hunt shopping experience with rotating premium products
Sam's Club advantages:
- Scan & Go app: Skip checkout lines entirely by scanning items with your phone — Costco has no equivalent, and this is a genuine game-changer
- Curbside pickup available at most locations
- More locations (nearly 600 vs. Costco's 591 in the U.S.)
- Better integration with Walmart+ for online shopping
Gas Prices
Both clubs offer discounted fuel, and gas savings can easily justify membership costs alone:
- Costco gas: Typically $0.20-$0.30/gallon below local average
- Sam's Club gas: Typically $0.15-$0.25/gallon below local average
- Winner: Costco, by approximately $0.05/gallon on average
Pharmacy and Optical
Both clubs offer pharmacy and optical services, often at significant savings compared to retail pharmacies:
- Costco pharmacy: Consistently ranked as the lowest-cost pharmacy in the U.S. by Consumer Reports. Notably, you do NOT need a Costco membership to use the pharmacy.
- Sam's Club pharmacy: Competitive pricing but slightly higher than Costco on average for the most common generic medications.
The Executive/Plus Membership Math
The premium memberships pay for themselves if you spend enough:
- Costco Executive: Breaks even at $6,500/year in Costco spending (2% of $6,500 = $130)
- Sam's Club Plus: Breaks even at $5,500/year in Sam's Club spending (2% of $5,500 = $110)
Our Verdict
Choose Costco if: You prioritize product quality, want the best store brand (Kirkland), buy a lot of fresh food and organic products, and do not mind waiting in checkout lines.
Choose Sam's Club if: You value convenience (Scan & Go, curbside pickup), want the lower membership fee, prefer a wider selection of name brands, or live closer to a Sam's Club than a Costco.
For most families, Costco's 4.2% lower average prices offset the $15 higher membership fee within the first few months. But Sam's Club's technology advantages (Scan & Go) and lower entry price make it an excellent choice for shoppers who value convenience.
