Costco’s 13-gallon kitchen trash bags typically cost about $18-$28 for a 200-count box, with warehouse pricing often lower than delivered online pricing. The final price depends on brand, bag count, local availability, and whether the listing includes shipping or a promotion.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Kirkland Signature 13-gallon bags | $18 | $22 | $28 | Usually a large multi-roll pack; price varies by warehouse and channel |
| Price per bag, 200-count box | $0.09 | $0.11 | $0.14 | Calculated from the estimated box price |
| Comparable branded bags | $20 | $26 | $34 | Count, drawstring design, and promotions affect the total |
Prices are estimates, not a live Costco quote. Pack sizes and availability can differ by location.
What a 200-Count Costco Kitchen Bag Pack Costs
For a standard 200-count box of Kirkland Signature 13-gallon kitchen bags, a practical budget is $18-$28 before any applicable tax. Around $22 is a reasonable planning average, or roughly 11 cents per bag. A warehouse shelf price may fall near the low end, while online checkout can land higher if delivery costs are built into the listing.
For routine budgeting, compare the price per bag rather than the box price alone. These estimates assume ordinary drawstring kitchen bags in a bulk pack, with no unusual delivery charge or temporary discount. A smaller pack or a different brand may have a higher unit price even when its upfront price looks lower.
How Bag Count, Materials, and Delivery Shape the Quote
Trash-bag pricing is mainly the product price; labor, installation, and equipment do not apply. A useful comparison separates the package cost from delivery and the number of bags included, especially when comparing an in-warehouse purchase with an online order.
| Price element | Low | Average | High | What changes it |
|---|---|---|---|---|
| 200-count bag pack | $18 | $22 | $28 | Brand, thickness, scent, and promotion |
| Cost per bag | $0.09 | $0.11 | $0.14 | Pack price divided by count |
| Delivery or online premium | $0 | $3 | $8+ | Listing price, shipping, and order eligibility |
| Sales tax | $0 | Local rate | Local rate | State and local rules |
Example: a $22 box with 200 bags works out to $0.11 per bag before tax.
The clearest apples-to-apples figure is the delivered cost per bag. Check whether an online listing has the same count and bag type as the warehouse product; similar product names may refer to different sizes or pack quantities.
Which Pack Details Push the Per-Bag Price Up
Pack count has a direct effect on unit price. At $22, a 200-count package costs 11 cents per bag; a 150-count package at the same price costs about 15 cents each. Package descriptions should be checked for the count printed on the listing or box, rather than assuming all Costco packs have the same quantity.
Bag construction also matters. Standard drawstring bags generally cost less than versions marketed for extra strength, odor control, or a scented finish. A 13-gallon capacity is intended for many common kitchen cans, but bag dimensions and fit vary; a bag that is too short or narrow can tear or slip, wasting the apparent savings.
Compare count and bag features before treating a higher price as a worse deal. For a household that regularly handles heavy or wet waste, paying a few cents more per bag may reduce leaks and double-bagging. For light kitchen waste, a basic version may be sufficient.
How to Cut the Cost Without Buying the Wrong Size
Buying during a Costco promotion can lower the effective price, but the useful comparison is the discounted total divided by the actual number of bags. Avoid stocking up beyond normal use if the pack is difficult to store or if a different size may fit the household’s can better.
Check the warehouse price against the online delivered price before ordering. Online convenience may be worth a modest premium, but a large price gap can erase the bulk-pack savings. Members can also compare the Kirkland unit price with a sale-priced competing brand; a smaller box can win when its per-bag cost is lower and the features meet the same need.
Keep the can size and bag count constant when comparing deals. A bargain on 30-gallon bags is not a substitute for a 13-gallon kitchen pack, and a low package price is not necessarily a low unit price.
Warehouse Versus Online Pricing for Costco Bags
Warehouse prices can vary by region and location, while online listings may reflect shipping, handling, or different packaging. As a rough planning allowance, a shopper might see a warehouse price around 5%-15% below a comparable delivered online price; this is not a guaranteed Costco markup, and promotions can reverse the difference.
In areas with higher retail and delivery costs, the total may be toward the upper end of the estimate. Rural shoppers may have fewer local alternatives or face delivery limitations, while urban shoppers may have easier access to competing stores. Checking the same product count at nearby stores gives a more useful local comparison than relying on a national average.
Use the final checkout total, not the product-page price, when comparing channels. Confirm membership requirements, delivery eligibility, and any minimum order conditions before treating an online price as final.
How Long a 200-Bag Box May Last
A 200-count box lasts about 6.6 months at one bag per day, 3.3 months at two per day, or 10 months at five bags per week. These are simple estimates; the actual pace depends on household size, recycling habits, and whether the bags are used for more than kitchen waste.
At an average box price of $22, a household using one bag each day spends about $3.30 per month on bags. This calculation helps put a bulk purchase in context, but it does not account for using multiple bags after a tear or using them in bathrooms and bedrooms.
Estimate consumption before buying an extra pack just to reach a lower unit price. Storage space and the risk of choosing a bag that does not fit can outweigh a small per-bag discount.
When a Higher-Priced Drawstring Bag Pays Off
A premium or reinforced bag can make sense when the household regularly disposes of heavy food scraps, sharp packaging, or damp waste. A basic bag may be the lower-cost choice for light, dry refuse. The best comparison is the cost per successful use: a bag that often leaks or needs a second layer may cost more in practice than its shelf price suggests.
Compare the bag’s stated capacity, closure style, and package count, and check the fit against the can’s rim and depth. Do not assume a higher price guarantees better performance; features and user experience vary by product. If a current Costco listing does not show the same pack details as an older price reference, treat that older figure as a rough benchmark rather than a confirmed current offer.
For most price checks, the useful target is roughly $0.09-$0.14 per 13-gallon bag. A quote above that range may still be reasonable if it includes a smaller pack, stronger construction, or delivery, but those details should explain the difference.