Costco Grocery Price List 2026: Unit Prices That Actually Beat Walmart
Typical Costco prices for 21 bulk staples in 2026, converted to unit price so you can see which ones genuinely beat a supermarket and which don't.
Key Takeaways
• Costco's advantage is unit price, not sticker price, and it is real on paper goods, oils, nuts, and cheese.
• On fresh produce and anything perishable, bulk quantities routinely cost more than they save once waste is counted.
• At 20-35% savings the $65 membership breaks even at roughly $250-450 of annual bulk buying, which most households clear easily.
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Last updated: August 2026. Costco does not publish a price list, prices vary by region and warehouse, and inventory rotates constantly. Treat everything here as a benchmark.
More importantly: a Costco price list in sticker terms is useless. A $21.99 pack of toilet paper tells you nothing. What matters is the unit price, so that is how this list is built.
Membership
| Tier | Cost | Adds |
|---|---|---|
| Gold Star | $65/year | Base membership |
| Executive | $130/year | 2% cashback on most purchases |
Executive pays for itself at roughly $3,250 in annual spending. Below that, Gold Star is the better deal.
Where Bulk Genuinely Wins
These are the categories where the unit price advantage is real and the product does not spoil before you use it.
| Item | Costco | Unit price | Supermarket unit price |
|---|---|---|---|
| Toilet paper, 30-roll | $21.99–$24.99 | $0.73–$0.83/roll | $0.95–$1.25/roll |
| Paper towels, 12-roll | $19.99–$22.99 | $1.67–$1.92/roll | $2.15–$2.75/roll |
| Olive oil, 2L | $14.99–$16.99 | $0.22–$0.25/oz | $0.30–$0.42/oz |
| Coffee, 2.5 lb | $16.99–$21.99 | $0.42–$0.55/oz | $0.62–$0.87/oz |
| Mixed nuts, 2.5 lb | $16.99–$21.99 | $0.42–$0.55/oz | $0.75–$1.10/oz |
| Shredded cheese, 5 lb | $16.99–$19.99 | $0.21–$0.25/oz | $0.31–$0.46/oz |
| Bottled water, 40-pack | $4.99–$5.99 | $0.12–$0.15/bottle | $0.20–$0.28/bottle |
| Rice, 25 lb | $19.99–$26.99 | $0.80–$1.08/lb | $1.20–$1.50/lb |
| Laundry detergent, 194oz | $19.99–$24.99 | $0.10–$0.13/oz | $0.16–$0.22/oz |
Savings here run 20–35% on unit price, and none of it spoils. This is the case for the membership.
Meat and Protein
| Item | Costco | Unit price |
|---|---|---|
| Rotisserie chicken (~3 lb) | ~$4.99 | ~$1.66/lb |
| Chicken breast, boneless, 3lb+ pack | $9.99–$11.99 | $3.33–$4.00/lb |
| Ground beef 80/20, 3 lb pack | $14.99–$16.49 | $5.00–$5.50/lb |
| Bacon, 4 lb | $18.99–$23.99 | $4.75–$6.00/lb |
| Salmon fillet, per lb | $9.99–$13.99 | — |
The rotisserie chicken at $4.99 is the most famous loss leader in US grocery and genuinely unbeatable.
Note what the other rows show though: bulk chicken breast at $3.33–$4.00/lb is roughly Walmart's $3.24–$3.98, and bulk ground beef at $5.00–$5.50/lb is roughly Walmart's $4.98–$5.48. On core meat, Costco is at parity, not ahead. The win only materializes if you freeze and use all of it.
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Eggs and Dairy
| Item | Costco | Unit price | Supermarket |
|---|---|---|---|
| Eggs, 5-dozen tray | $7.99–$8.99 | $1.60–$1.80/dozen | $1.70–$2.50/dozen |
| Butter, 4 lb | $14.99–$17.99 | $3.75–$4.50/lb | $3.48–$4.28/lb |
| Milk, 2-gallon pack | $5.49–$6.99 | $2.75–$3.50/gal | $2.76–$3.65/gal |
Eggs win modestly. Butter and milk are at or slightly worse than supermarket unit price, which surprises people.
Where Bulk Loses
This is the section most Costco guides skip.
| Item | The problem |
|---|---|
| Fresh produce, large quantities | Spoils before a household of 2–3 finishes it. A $9 bag of spinach at half wasted is $18 of spinach. |
| Spices, large jars | Lose potency in 6–12 months. Most households use a fraction. |
| Condiments, oversized | Same problem, plus fridge space. |
| Bakery, large packs | Stales in days unless frozen immediately. |
| Frozen berries, 3 lb | $9.99–$11.99, competitive but only if freezer space exists. |
The rule: unit price only counts on units you actually use. Cost per used unit is the real number, and on perishables in bulk it is often worse than the supermarket.
Does the Membership Pay Off?
At the 20–35% savings rates above, the $65 Gold Star breaks even at roughly $250–$450 of annual bulk buying in the categories where the discount is real.
- Households of 3+ buying paper goods, pantry staples, and meat in bulk: clears this easily, usually within four months.
- Households of 1–2: frequently do not, especially without freezer space. Run the math before renewing.
Compare against the alternative in Costco vs Sam's Club if you have both nearby.
The Trip Cost Problem
Costco baskets are large, and the store is designed to make them larger. The average Costco trip runs well above a supermarket trip, and a meaningful share of that is unplanned.
Buying a 30-roll of toilet paper at a 25% unit discount is a genuine saving. Doing it on the same trip as a $200 unplanned purchase is not. The membership math above assumes disciplined bulk buying, not a typical Costco Saturday.
Track Cost Per Used Unit, Not Sticker Price
The only way to know if your membership pays off is to track what you actually buy and what you actually use.
GroceryBudget records what you paid for each item at each store, so you can compare your real Costco unit prices against your real supermarket prices instead of guessing. Its store comparison shows where your money goes further for your basket, and it tracks your running total against a budget while you shop, which is the part that catches a Costco trip mid-flight.
Works offline, free to start, no account required.
Download GroceryBudget — free, offline, tracks your total as you shop.
Also available on Android: Google Play.
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Store price lists: Walmart Grocery Price List 2026 · Aldi Price List 2026
Head to head: Costco vs Sam's Club · Walmart vs Aldi · How to compare grocery prices across stores
How much should you be spending? Average cost of groceries per month in 2026 — USDA benchmarks by household size.
Frequently Asked Questions
Is there an official Costco price list?+
No. Costco does not publish a price list, and prices vary by region and warehouse. Costco also rotates a significant share of its inventory, so items are frequently discontinued or replaced. The figures here are typical 2026 US warehouse prices.
Is Costco actually cheaper than Walmart?+
On unit price for shelf-stable bulk goods, usually yes, often 15 to 30 percent cheaper on paper products, cooking oil, nuts, cheese, and coffee. On fresh produce and perishables the advantage frequently disappears once food waste is counted, and Walmart wins on small quantities.
Is a Costco membership worth it?+
At the 20 to 35 percent savings rates typical of bulk-appropriate categories, the $65 Gold Star membership breaks even at roughly $250 to $450 of annual bulk purchasing. Most households clear that. The real question is not the breakeven but whether the extra volume gets used, since waste on perishables can erase the savings entirely.
What should you not buy at Costco?+
Fresh produce in large quantities unless you have a plan for all of it, spices, condiments you use slowly, anything with a short shelf life, and small household items you would use up before they expire. The unit price on these looks good and the real cost per used unit does not.
How much is a Costco membership in 2026?+
Gold Star is $65 per year and Executive is $130 per year. Executive adds 2 percent cashback on most purchases, which pays for the upgrade at roughly $3,250 in annual spending.
