Costco vs Sam's Club vs BJ's: US Weekly Grocery Family of 4 (2026)

Updated: September 2026.

TL;DR verdict

For a US family of four doing a weekly grocery run in 2026, the choice between the three warehouse clubs turns on geography, prepared-food preferences and how you stack credit-card rewards. Costco leads on average unit price for staples, produce and meat quality (grass-fed beef, organic produce depth, wild salmon programme), and the Kirkland Signature private label. Sam's Club wins on prepared foods, member-only Scan and Go checkout, Sam's Club gas discount depth in the South and Midwest, and Plus tier value for cashback-earning households. BJ's Wholesale Club is the East Coast answer, permits manufacturer coupon stacking on top of instant savings (the only major club to allow this), and beats both peers on selection of national-brand grocery items. Weekly grocery savings for a family of four versus a standard supermarket run consistently land in the USD 40 to 90 range across all three clubs, with membership payback of USD 50 to 130 annually recovered in 2 to 6 weeks of use.

Earn cashback on grocery, home and everyday buys on ShopBack

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What the choice really depends on

The Bureau of Labor Statistics Consumer Expenditure Survey reported that "average annual food-at-home spending for US families with children reached USD 8,340 in 2024, up 3.1 percent year-on-year, with warehouse-club households capturing a larger share of grocery dollars than a decade earlier" (US Bureau of Labor Statistics Consumer Expenditure Survey, 2024 data release, September 2024). For a family of four spending roughly USD 160 to 260 per week on groceries, cutting even 15 to 25 percent off that basket recovers a warehouse-club membership fee inside the first two months.

The USDA's monthly Cost of Food at Home report provides a useful floor. Its "Moderate-Cost Food Plan" for a US family of four (two adults, two school-aged children) sat at USD 1,187.30 per month in July 2025, roughly USD 274 per week (USDA Cost of Food at Home report, July 2025 release). Warehouse-club shopping typically pulls that number down to USD 195 to 235 per week for the same nutritional profile, without changing meal complexity or brand quality.

Costco Wholesale Corporation stated in its 2024 Annual Report that "member renewal rates in the US and Canada reached 92.9 percent for the fiscal year, and Kirkland Signature grew to represent approximately 32 percent of company net sales" (Costco Wholesale 2024 Annual Report, October 2024). That 92.9 percent renewal number is the single strongest signal about member value; the industry-wide grocery-supermarket loyalty rate does not come close.

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Membership fees, at a glance

Club	Base tier annual fee (2026)	Higher tier annual fee (2026)	Higher tier cashback / benefit
Costco	Gold Star USD 65	Executive USD 130	2% back on eligible purchases up to USD 1,250/year, extra services
Sam's Club	Club USD 50	Plus USD 110	2% back on eligible purchases up to USD 500/year, free shipping, early hours
BJ's Wholesale	Inner Circle USD 55	Perks Plus USD 110	2% back on eligible purchases up to USD 500/year, free shipping on most items

Costco and BJ's raised annual fees in 2024 (Costco Gold Star from USD 60 to USD 65, Executive from USD 120 to USD 130). Sam's Club held at USD 50 base, USD 110 Plus. For most families of four spending USD 5,000 or more per year in-club, the higher tier (Executive, Plus or Perks Plus) recovers its incremental USD 60 to 80 in 2 percent cashback well before year end.

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Three-way comparison table

Attribute	Costco	Sam's Club	BJ's Wholesale
US warehouses (2026)	~600	~600	~250
Geographic strength	Nationwide, best on West Coast	Nationwide, best in South and Midwest	East Coast only (17 states, DC, Puerto Rico)
Base membership	USD 65	USD 50	USD 55
Higher tier	USD 130 (Executive)	USD 110 (Plus)	USD 110 (Perks Plus)
Higher tier cashback cap	USD 1,250 per year	USD 500 per year	USD 500 per year
Private label	Kirkland Signature (best-in-class)	Member's Mark (very good)	Berkley Jensen, Wellsley Farms (good)
Manufacturer coupons	Not accepted	Not accepted	Accepted on top of Instant Savings (unique)
Digital coupons	Not needed (built into pricing)	Instant Savings auto-applied	Digital + paper stack
Rotisserie chicken	USD 4.99 (unchanged for years)	USD 4.98	USD 5.99
Milk (2 gal)	USD 4.19 to 4.99	USD 4.29 to 4.99	USD 4.99 to 5.49
Eggs (24-count Grade A)	USD 6.49 to 8.99	USD 5.99 to 8.49	USD 6.99 to 8.99
Ground beef (family pack per lb)	USD 4.99 to 6.29 (grass-fed premium)	USD 4.79 to 5.99	USD 4.99 to 5.99
Organic produce depth	Best	Good	Good
Meat and seafood quality	Best (Prime beef programme)	Very good	Good
Prepared foods programme	Best on-site food court	Best packaged prepared meals	Middle
Bakery	Very good	Very good	Very good
Alcohol / wine	Excellent (in most states)	Very good	Good
Gas station	Yes (Costco Gasoline)	Yes (Sam's Club Fuel)	Yes (BJ's Gas)
Gas discount depth	10 to 30 cents/gal below market	10 to 25 cents/gal below market	10 to 20 cents/gal below market
Scan and Go mobile checkout	Yes (Costco app, member-only)	Yes (Scan and Go, all members)	Yes (BJ's app Express Pay)
Online ordering	Costco.com (nationwide)	SamsClub.com (nationwide)	BJs.com (nationwide)
Same-day grocery delivery	Instacart	Instacart, Sam's Club direct	Instacart

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Costco: the average-price winner

Costco's structural advantage is the Kirkland Signature private label. Kirkland now represents roughly 32 percent of Costco's total US sales, and the brand consistently prices at 20 to 30 percent below equivalent national brands while frequently sourcing from the same manufacturing facilities. For a family of four buying detergent, olive oil, coffee, nuts, cheese, batteries, paper towels and pet food, converting the top 15 to 20 Kirkland SKUs into weekly staples is where the club membership pays for itself.

Costco's meat programme is the strongest of the three. USDA Prime beef availability, wild-caught salmon fillets, organic ground turkey and grass-fed ground beef are all consistent stocks. Produce quality (organic strawberries, avocados, spinach, romaine, apples) benchmarks favourably against Whole Foods on freshness, per side-by-side pricing tracked by consumer publications. The rotisserie chicken has stayed at USD 4.99 for over a decade, and Costco leadership has publicly committed to holding it as a loss-leader anchor.

Costco Executive membership (USD 130) returns 2 percent cashback on eligible purchases up to a USD 1,250 annual cap, meaning a household spending USD 6,500 or more per year in-club recovers the USD 65 fee premium plus meaningful net cashback. Executive also unlocks lower prices on Costco Travel and Costco Auto Program services, which are separate value pools worth investigating for anyone buying a car or booking a cruise.

Where Costco loses: no manufacturer coupon stacking, and the Costco app's Scan and Go feature is not universally available in-warehouse (rolling deployment through 2025 to 2026). Prepared-meal programmes are lighter than Sam's Club.

Use ShopBack when buying Costco.com online orders or Costco Travel to compare cashback rates.

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Sam's Club: the prepared-food and Scan and Go winner

Sam's Club is Walmart's warehouse arm and its scale advantage shows up on packaged prepared foods (fresh takeaway meals, ready-to-cook proteins, meal kits) and on member technology. Scan and Go, the mobile-checkout feature where a member scans items as they shop and pays through the Sam's Club app, is more widely deployed and more reliable than the Costco or BJ's equivalents. For families with kids where waiting in a checkout line is the killer, Scan and Go is a real quality-of-life improvement.

Sam's Club Plus (USD 110) returns 2 percent cashback on eligible in-club purchases up to a USD 500 annual cap, adds free shipping on most SamsClub.com orders, allows early shopping hours (from 8am versus 10am for Club members), and provides free curbside pickup. The math on Plus is tighter than Costco Executive because of the USD 500 cap; households above USD 15,000 in annual in-club spend see the incremental benefit compress.

Member's Mark, the Sam's Club private label, is competitive with Kirkland on price and typically strong on paper products, coffee and cheese. Where Sam's Club wins meaningfully is on rotisserie chicken (USD 4.98, ever so slightly cheaper than Costco), packaged prepared meals (buffalo chicken dip, salmon meal kits, chicken cordon bleu), and gas discount depth in the South and Midwest where Sam's Club stations concentrate.

Where Sam's Club loses: produce depth and meat quality lag Costco. No manufacturer coupons.

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BJ's Wholesale Club: the East Coast coupon-stacker

BJ's Wholesale is roughly one-third the size of Costco or Sam's Club (approximately 250 US warehouses versus roughly 600 each). Its footprint is heavily East Coast concentrated (Massachusetts, New York, New Jersey, Connecticut, Maryland, Virginia, Pennsylvania, Florida, plus DC and Puerto Rico), with recent expansion into the Southeast. If you do not live in one of BJ's states, this decision is not a real choice.

For families in the BJ's footprint, the club's structural differentiator is manufacturer coupon acceptance. BJ's is the only major US warehouse club that allows manufacturer coupons to stack on top of the club's own Instant Savings and BJ's Perks Plus rewards. On common national-brand grocery items (cereal, laundry detergent, diapers, canned goods), the stack can drive final per-unit prices below Costco or Sam's Club by 10 to 25 percent. BJ's investor materials confirmed in 2024 that "digital and paper coupon redemption grew 14 percent year-on-year, with unique coupon stack combinations becoming a meaningful differentiator versus Costco and Sam's Club" (BJ's Wholesale Club investor releases, Q3 2024 earnings materials).

BJ's carries more national-brand SKUs than either competitor (Cheerios, Tide, Pampers, Coca-Cola, Kraft, etc.) which suits families who prefer specific national brands over private-label alternatives. Berkley Jensen and Wellsley Farms are the BJ's private labels; both are solid but not at the Kirkland Signature caliber.

Where BJ's loses: geographic reach (irrelevant if you live in a BJ's state), meat and produce quality slightly behind Costco.

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Sample weekly basket for family of four

Below is a representative weekly grocery basket for a US family of four (two adults, two school-aged children, mixed cooking including 2 protein meals, 2 pasta/rice meals, 1 pizza night, 1 slow-cooker meal). Prices reflect national averages, September 2026.

Item	Costco basket	Sam's Club basket	BJ's basket	Standard supermarket
Milk (2 gallons whole and 2%)	USD 4.79	USD 4.79	USD 4.99	USD 8.99
Eggs (24-count Grade A large)	USD 7.49	USD 6.99	USD 7.99	USD 10.99
Rotisserie chicken (2 birds)	USD 9.98	USD 9.96	USD 11.98	USD 15.98
Ground beef (5 lb, 85/15)	USD 26.99	USD 24.99	USD 26.99	USD 34.99
Salmon fillets (2 lb wild)	USD 21.99	USD 22.99	USD 24.99	USD 34.99
Frozen chicken breast (5 lb)	USD 17.99	USD 15.99	USD 17.99	USD 24.99
Bread (2 loaves)	USD 4.99	USD 4.99	USD 5.49	USD 7.98
Bananas (5 lb)	USD 6.99	USD 5.99	USD 6.49	USD 8.99
Apples (5 lb Honeycrisp)	USD 9.99	USD 8.99	USD 9.99	USD 13.99
Baby spinach (organic 2 lb)	USD 6.99	USD 5.99	USD 6.49	USD 9.99
Pasta (10 lb)	USD 12.99	USD 12.99	USD 11.99	USD 19.99
Cheese (Kirkland/Member's Mark blocks 2 lb)	USD 12.99	USD 12.49	USD 13.49	USD 18.99
Coffee (3 lb whole bean)	USD 22.99	USD 21.99	USD 22.99	USD 34.99
Snacks + kids lunch (variety)	USD 30 to 45	USD 28 to 42	USD 30 to 45	USD 45 to 65
Weekly basket total	USD 197 to 218	USD 187 to 208	USD 202 to 224	USD 291 to 320

Weekly savings versus standard supermarket run USD 73 to 133. Membership fees recover in 2 to 6 weeks depending on tier chosen and geographic pricing variance. The single largest driver of the gap is protein (rotisserie chicken, ground beef, salmon, frozen chicken breast), followed by cheese and coffee.

Note: no per-merchant cashback rates quoted. Rates vary by merchant and change over time; verify the current published rate on the ShopBack merchant page before checkout.

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Persona-specific verdicts

For a West Coast, Mountain West or Pacific Northwest family of four: Costco. Density of warehouses, Kirkland alignment, produce and meat programme.

For a Southern (Texas, Florida, Georgia, Tennessee, Alabama) or Midwestern (Ohio, Indiana, Illinois) family of four: Sam's Club or Costco. Sam's Club density is highest in these regions; prepared-food and gas discounts often tip the balance.

For an East Coast (New York, New Jersey, Connecticut, Massachusetts, Maryland, Virginia, Pennsylvania, Florida) family of four: BJ's Wholesale, especially if the family uses manufacturer coupons or prefers national brands over private label.

For a family focused on organic produce and premium meat: Costco. Organic produce depth and Prime beef/wild salmon programmes lead.

For a family with limited time (Scan and Go, weekday evenings only): Sam's Club. Best-executed mobile checkout, longer Plus-tier evening hours.

For a family that stacks credit card rewards: All three. Costco earns Costco Anywhere Visa by Citi (4% gas, 3% dining and travel, 2% Costco) directly. Sam's Club earns Sam's Club Mastercard by Synchrony (5% gas, 3% dining, 3% travel). BJ's earns BJ's One Mastercard by Capital One (2% BJ's, 3% BJ's Perks Plus). The card choice matters more than the club choice for total household return.

For a family of two, or a young couple: Membership math changes. Costco Gold Star at USD 65 and Sam's Club Club at USD 50 both remain worth it if you buy anything close to weekly staples in bulk; BJ's Inner Circle at USD 55 is closer to the margin.

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Where to buy and cashback stacking

Use ShopBack when buying Costco.com online orders, SamsClub.com online orders, or BJs.com online orders. Costco Travel and Sam's Club Travel are also worth checking for cashback on top of member pricing. Rates vary by merchant and change over time; verify the current published rate on each merchant page before checkout.

Warehouse club credit-card stacking is the second half of the value equation. Combine your club membership with the club's own branded credit card (Costco Anywhere Visa, Sam's Club Mastercard or BJ's One Mastercard) for baseline in-club cashback of 2 to 5 percent. Use a general 2 percent everyday-cashback card outside the club (Fidelity Rewards, Wells Fargo Active Cash) or the club card's non-club category. Check ShopBack on general retail categories (electronics, tires, appliances) sold across multiple merchants to add cashback on top of the credit-card layer.

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When this does NOT apply

• Single person or couple with no kids: Warehouse-club pack sizes push waste risk higher than the marginal savings. Rotate through a partner or friend household to split larger packs, or consider Amazon Fresh, Whole Foods (Prime member 10 percent discount) and Trader Joe's instead.
• Households without a car or without freezer/pantry storage: Warehouse-club savings assume you can transport and store the larger pack sizes. Small apartment kitchens with no chest freezer struggle to absorb Costco-scale purchases.
• Households that shop primarily for immediacy: Warehouse-club runs typically happen once every 1 to 2 weeks. If your household shops for tonight's dinner most days, a nearby supermarket (Trader Joe's, Whole Foods Market, Kroger, Publix, Wegmans, HEB) is a better fit and warehouse membership becomes a supplemental play.
• Households in states with strong local supermarkets (Wegmans in NY/PA/NJ/MD, Publix in FL/GA, HEB in TX): Local supermarket loyalty programmes and coupon books frequently close the price gap on national brands. Warehouse clubs still win on Kirkland/Member's Mark private label and rotisserie chicken but the gap narrows.
• Family with special dietary needs (gluten-free, keto, kosher, halal): Warehouse-club selection depths run thinner. Use warehouse for staples that fit your diet (proteins, produce, dairy) and supplement at a specialty grocer.

Compare warehouse-club online orders and travel with cashback: Costco . Sam's Club . BJ's Wholesale

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Frequently asked questions

Which warehouse club is cheapest for a family of four in 2026?

The three are within 10 to 15 percent of each other on a comparable weekly basket. Costco tends to win on protein and private-label staples; Sam's Club on prepared foods and gas; BJ's on national-brand grocery when coupon-stacking. All three cut USD 40 to 90 off a typical family-of-four supermarket run.

Is Costco Executive membership worth the extra USD 65?

Yes, for families spending USD 3,250 or more per year in-club. Executive returns 2 percent cashback on eligible purchases up to USD 1,250 per year, recovering the fee premium at USD 3,250 in annual in-club spend. Executive also unlocks additional savings on Costco Travel and Costco Auto Program.

Is Sam's Club Plus worth the extra USD 60?

Yes for households spending USD 3,000 or more per year in-club (2 percent cashback up to USD 500 cap recovers the fee premium at USD 3,000 in spend). Plus also includes free shipping on most SamsClub.com orders and early shopping hours (from 8am).

Does BJ's really accept manufacturer coupons on top of Instant Savings?

Yes. BJ's is the only major US warehouse club that permits manufacturer coupons to stack on top of its own Instant Savings and Perks Plus rewards. The BJ's investor materials confirmed coupon redemption grew 14 percent in 2024 as families increased stack usage (BJ's Wholesale Club investor releases).

How much can a family of four save shopping warehouse club versus supermarket?

Weekly savings typically land USD 40 to 90 for a comparable-quality basket. Larger savings appear on protein (rotisserie chicken, ground beef, salmon), private-label staples (paper towels, olive oil, coffee, cheese) and packaged prepared meals. Smaller savings appear on produce with high freshness sensitivity and on specialty items.

Which warehouse club is best in the Northeast US?

BJ's Wholesale Club, by density. BJ's is heavily East Coast concentrated across Massachusetts, New York, New Jersey, Connecticut, Maryland, Virginia and Pennsylvania. Costco is also present but at lower warehouse density than in the West. Sam's Club density is lowest of the three in the Northeast.

Which warehouse club has the best rotisserie chicken?

Costco (USD 4.99) and Sam's Club (USD 4.98) are essentially tied. BJ's rotisserie chicken (USD 5.99) is USD 1.00 higher. Costco has publicly committed to holding the USD 4.99 price and treats the bird as a loss-leader anchor.

Can I use my Costco membership at Sam's Club or BJ's?

No. Each club requires its own membership. If you live in an area with all three, most families choose one primary and occasionally shop a second for specific items (e.g., BJ's for national-brand couponing while primary at Costco).

Which club has the best gas discount?

Depends on region. Sam's Club Fuel typically leads by 5 to 10 cents per gallon in the South and Midwest. Costco Gasoline leads on West Coast and Mountain West. BJ's Gas is competitive on the East Coast. Discount depth ranges from 10 to 30 cents per gallon below neighbourhood market.

Do I need a credit card to shop at Costco?

Costco physical warehouses accept Visa (and debit cards on Visa or Mastercard networks) but do not accept American Express, Discover or Mastercard credit cards. Costco.com online accepts Visa, Mastercard, Discover and American Express. Sam's Club and BJ's accept all four networks in-warehouse and online.

Can I earn ShopBack cashback on Costco.com purchases?

Yes. Use ShopBack when placing an online order at Costco, Sam's Club or BJ's Wholesale. Activate ShopBack before clicking through to the club site, and complete checkout in one session. Cashback rates vary by merchant and change over time; verify the current published rate on each merchant page before checkout.

Does ShopBack work for Costco Travel and Sam's Club Travel bookings?

Yes on most eligible bookings. Cashback varies by travel category (hotel, cruise, rental car, tour package) and merchant. Check the current published rate on the ShopBack Costco or Sam's Club merchant page before completing the booking.

Which warehouse club is best for organic produce?

Costco. Deepest selection of organic strawberries, avocados, spinach, romaine, blueberries and apples, with the highest turnover (better freshness). Sam's Club and BJ's carry organic produce but with thinner selection.

Is Kirkland Signature really the best private label?

By breadth and category depth, yes. Kirkland spans grocery, household, apparel, electronics, and services (Kirkland-branded flights via Costco Travel), representing roughly 32 percent of Costco company sales per the 2024 Annual Report. Member's Mark (Sam's Club) is competitive on core categories; Berkley Jensen and Wellsley Farms (BJ's) are good but narrower.

Which warehouse club has the fastest checkout?

Sam's Club. Scan and Go, the mobile-checkout feature where members scan items as they shop and pay through the app, is most reliably deployed at Sam's Club. Costco is deploying its own Scan and Go in select warehouses through 2025 to 2026 but coverage remains uneven. BJ's has Express Pay via the BJ's app in most warehouses.

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Primary sources referenced

• US Bureau of Labor Statistics Consumer Expenditure Survey . 2024 data release
• USDA Cost of Food at Home reports . July 2025 release
• Costco Wholesale 2024 Annual Report . October 2024
• Sam's Club (Walmart Inc.) FY2025 investor materials
• BJ's Wholesale Club investor releases . Q3 2024 earnings materials

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Key takeaways

• Costco wins on average unit price, protein quality and Kirkland Signature private label.
• Sam's Club wins on prepared foods, Scan and Go checkout and gas discount in South/Midwest.
• BJ's Wholesale wins on East Coast coverage and manufacturer coupon stacking (unique among the three).
• Weekly grocery savings for a family of four run USD 40 to 90 versus standard supermarket.
• Membership fees recover in 2 to 6 weeks; higher-tier (Executive, Plus, Perks Plus) recover in 6 to 10 weeks at typical spend.
• Use ShopBack to compare cashback across Costco.com, SamsClub.com and BJs.com before checkout.

Earn cashback on grocery, home and everyday buys on ShopBack

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Disclaimer

The views and recommendations expressed in this article are those of the author.

Prices, rates, promotions, and availability are subject to change. Please verify details directly with the relevant providers before making any decisions.

This article is intended for general informational purposes only and should not be considered professional or financial advice.

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