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Costco grocery list for a family of 4
The essentials for one Costco stock-up trip, how to size it up for a bigger family, and when to go.
This list covers one trip for a family of 4: about two weeks of fresh food, plus pantry and household packs that last a month or more. It sticks to the everyday things that are worth buying in bulk, so you leave with groceries rather than a cart full of extras.
Costco grocery list for a family of 4
From chompshopper.com/shopping-lists/costco
Costco shopping list
Pack sizes are the ones Costco commonly sells; they vary by warehouse, so go by what's on the shelf. Chomp Shopper isn't affiliated with Costco.
Produce
Meat & Seafood
Dairy & Eggs
Pantry & Spices
Bakery
Canned & Jarred
Snacks
Beverages
Household
Frozen
Before you go
- Your membership card (or the Costco app)
- Bags, boxes or a cooler bag for the drive home
- Room in the fridge and freezer: clear it out first
- This list, with what you already have crossed off
Shopping for a bigger family
Bigger households spend a little less per person: USDA's food cost estimates take about 5 percent off each person's share for a family of 5 or 6, and 10 percent for 7 or more.1 So you don't need to multiply the whole list; add more of what runs out first.
5 or 6 people
Add one more of the things that run out first: milk, eggs (take the 5-dozen pack), bread, bananas, yogurt and a second pack of chicken. Pantry and household packs usually stay the same and just run out sooner.
7 or more
Double the produce, dairy and bread, and add a second pack of each meat. A good rhythm is a Costco trip every 2 to 4 weeks for pantry and household items, with a quick weekly stop closer to home for milk, bread and fruit.
Fewer than 4
Skip the produce you can't finish in a week, buy frozen fruit and vegetables instead, and split every pack of meat into the freezer the day you shop.
Best times to shop
These hold for most grocery stores, not just Costco. Hours vary, so check your own warehouse's.
- QuietestWeekday evenings. In a 2024 survey of 1,000 U.S. grocery shoppers, Tuesday after 8 p.m. was the least popular time to shop.2 Your warehouse may close soon after that (some close at 8:30 p.m.), so check its hours and arrive with enough time to shop, or aim for earlier in the evening.
- BusiestSaturday late morning to early afternoon. Saturday from 10 a.m. to 2 p.m. was the most popular time in the same survey.2
- Costco's first hourExecutive members can shop from 9 a.m. on weekdays and Sundays, and 9 to 9:30 a.m. on Saturdays, before the doors open to everyone.3 Since that hour started, foot-traffic data shows visits shifting earlier in the day, which eased the late-morning and afternoon crowds.4
- Saturday eveningCostco's U.S. warehouses stay open until 7 p.m. on Saturdays, so late Saturday afternoon is another option.3
- Before a holidayExpect crowds in the days right before a big holiday, and check your warehouse's hours, since they can change around holidays.
Tips for shopping at Costco
Split the big packs the day you get home
Divide the chicken and ground beef into meal-size freezer bags, label them and freeze what you won't cook in the next day or two. Food kept at 0°F stays safe; the storage times are for quality: about 3 to 4 months for ground meat, 9 months for chicken pieces and 1 month for bacon.5
Only buy fresh food you'll finish
A 5-pound bag is only a deal if it gets eaten. Buy big produce packs for the fruit and vegetables your family goes through fastest, and get the rest as frozen bags, which keep for months.
Compare the price per ounce
Bulk isn't always cheaper. Check the price per ounce or per count against your usual store's sale prices, especially for snacks, cereal and coffee.
Is the Executive membership worth it?
It costs $65 a year more than Gold Star and pays back 2% of qualifying purchases, up to $1,250 a year.6 That means it pays for itself once you spend about $3,250 a year at Costco, roughly $270 a month.
Plan the first night's dinner around the rotisserie chicken
You'll be tired after a big trip. Dinner is the chicken, a bag of salad and some bread; the leftovers become tacos or soup later in the week.
Stick to the list in the middle aisles
The center of the warehouse is seasonal goods, electronics and samples. Shopping the list first, then browsing, keeps the trip and the bill shorter.
Make it your own list
We'll fill in this list in our free list builder. Remove what you already have, add the recipes you're planning for the next two weeks, and get one list sorted by store section.
Make my list from thisSources
- USDA Food and Nutrition Service, Official USDA Food Plans: Cost of Food at Home, December 2025, household-size adjustments: 5 or 6 people subtract 5 percent per person, 7 or more subtract 10 percent.
- Drive Research, The State of Grocery Shopping: An analysis of 1,000 U.S. grocery shoppers, 2024: Saturday 10 a.m. to 1:59 p.m. most popular; Tuesday after 8 p.m. least popular.
- Good Morning America (ABC News), New Costco hours for Executive members, September 1, 2025: Executive early hours at all U.S. warehouses; Saturday closing at 7 p.m.
- Placer.ai (Shira Petrack), Costco Early Openings Reshape Store Traffic Patterns, September 18, 2025: visits shifted earlier and late-morning and afternoon peaks eased.
- FoodSafety.gov (U.S. Department of Health and Human Services), Cold Food Storage Chart, freezer (0°F) times for quality: ground meat 3 to 4 months, chicken pieces 9 months, bacon 1 month.
- Costco, Executive Membership 2% Reward, $65 upgrade over Gold Star; 2% reward capped at $1,250 in any 12-month period.