Costco grocery shopping
Costco Grocery List
Costco is a warehouse club. The savings come from bulk sizes on items that store well or get used in volume. Going without a plan is the most expensive way to shop there.
Smart Costco shopping tips
A good Costco grocery list is short and specific. The store is built to make you buy things you didn't plan for. The list is your defense.
Tip 1
Only buy what you'll finish
Costco math only works if you actually use what you bought. A 5-pound block of cheese is a deal until half of it molds. Match bulk sizes to how fast your household goes through items.
Tip 2
Track Kirkland Signature swaps
Kirkland Signature (the Costco brand) is typically 20–30% cheaper than the name brand and often made by the same manufacturer. Default to Kirkland unless you have a strong preference.
Tip 3
Watch the .97 prices
Prices ending in .97 are clearance items being phased out. Prices ending in .99 are regular. .49 endings are manufacturer-discount items. Worth knowing if you're stocking up.
Tip 4
Skip the food court hunger trap
Costco trips routinely end with $300 of impulse buys because shoppers were hungry. Eat before. Stick to the list. The hot dog is fine, the four-pack of pajamas is not.
Starter Costco grocery list
A starter Costco list anchored on the bulk staples that actually save money for a household of 4–5. Adjust quantities down for smaller households.
Proteins (bulk)
- Rotisserie chicken (1)
- Chicken breasts (6-pack)
- Ground beef (4 lb)
- Eggs (24)
- Bacon (3-pack)
Dairy (bulk)
- Kirkland milk (2 gal)
- Kirkland butter (4 sticks x 4)
- Block cheese (2 lb)
- Greek yogurt (large)
Produce (bulk)
- Strawberries (2 lb)
- Blueberries (large)
- Spinach (1 lb)
- Avocados (6-pack)
- Onions (10 lb)
Pantry (bulk)
- Kirkland olive oil
- Rice (25 lb)
- Pasta (variety pack)
- Kirkland peanut butter
- Coffee (3 lb)
Frozen
- Frozen berries (large)
- Frozen salmon (individual)
- Frozen vegetables
- Frozen pizza (variety)
Household
- Toilet paper (30-roll)
- Paper towels
- Laundry detergent (2-pack)
- Dish soap (large)
Costco grocery questions
Is a Costco membership worth it for a family of 4?
For a family of four buying meat, dairy, produce, and household staples in volume, the $65 Gold Star membership typically pays back within 2–3 months. Smaller households break even slower; couples may want to stick with Walmart or Aldi unless they cook a lot.
What should I always buy at Costco?
Bulk items with long shelf life or fast household turnover: paper goods, laundry detergent, olive oil, rice, frozen berries, eggs, and rotisserie chicken. Skip: anything you'd buy small quantities of, perishables that don't get eaten fast, and trendy snacks you won't finish.
Does Costco have a grocery list app?
The Costco app supports shopping lists tied to your membership. For a more flexible household list with voice add, real-time sharing across phones, and AI suggestions based on what you actually buy, use I Forgot the List or AnyList alongside the Costco app.
Grocery lists for other stores
Stop forgetting things at Costco
I Forgot the List remembers what you buy at Costco and rebuilds your list automatically. Free on iPhone, Android, and the web.