11 Costco Bargains in September That Beat Grocery Store Prices

September is the month to stock up at Costco. From pantry staples to cleaning must-haves and drinks that keep you going, these bulk bargains deliver serious value. We’ve rounded up 11 deals that beat grocery store prices and keep your home stocked for less.

Fabuloso Multi-Purpose Cleaner $9.79/210 fl oz

A household favorite, Fabuloso’s Multi-Purpose Cleaner in the giant Costco size will last you months. Its signature fresh scent keeps your home smelling clean while tackling messes on counters, floors, and bathrooms with ease. Compared to the smaller grocery store bottles, this bulk option saves serious money per ounce. The easy-pour design makes refilling spray bottles effortless, while its versatility means you can cut through grease, grime, and dirt without buying multiple specialty cleaners. With this deal, you’ll stay stocked for the season and won’t have to worry about running out anytime soon—one less thing to stress about.

Nongshim Tonkotsu Ramen Bowl $10.39/6 x 3.56 oz

Nothing beats having quick comfort meals on hand, and Costco’s Nongshim Tonkotsu Ramen Bowls bring authentic flavor for a fraction of restaurant prices. Each bowl is rich with creamy pork broth and perfectly springy noodles, making it an easy lunch or dinner option. Whether you enjoy it straight or elevate it with a soft-boiled egg and veggies, this ramen is a solid value when bought in bulk. Grocery stores often charge close to $2 per bowl, but Costco’s price per unit comes in much lower, saving you big while keeping your pantry stocked with crave-worthy meals.

San Pellegrino Melograno & Arancia $18.99/24 x 11.15 fl oz

For a sparkling refreshment that feels indulgent, Costco’s San Pellegrino Melograno & Arancia delivers at the right price. This pomegranate-orange flavor is both tart and slightly sweet, making it an elegant alternative to sugary sodas. Each can offers a balanced taste that pairs beautifully with meals or serves as a mid-afternoon pick-me-up. At traditional grocery stores, packs of six can cost nearly as much as Costco’s bulk 24-pack, meaning you save while still sipping something premium. Stock up this September and enjoy sparkling Italian refreshment that feels far more luxurious than its price tag suggests.

FITCRUNCH Protein Bars $17.29/18 x 1.62 oz

Robert Irvine’s FITCRUNCH bars are a Costco favorite for fitness enthusiasts, and for good reason—they taste like candy bars but deliver 30 grams of protein per serving. Perfect as a post-workout recovery snack or meal replacement, these bars are satisfying, filling, and convenient. The Costco pack is a huge win compared to single bars at grocery or convenience stores, which often sell for $3–$4 each. Buying bulk brings the cost per bar down significantly, making them a must-grab this month for anyone looking to balance taste and nutrition without overspending.

Mila Pork Xiao Long Bao $59.99/3 x 50 dumplings

These juicy soup dumplings are one of the best Costco freezer finds of September. Each bao is filled with seasoned pork and rich broth that bursts with flavor once steamed. Comparable versions at specialty grocers or restaurants cost much more per serving, but this Costco bulk bag delivers restaurant-quality dumplings for less. Quick to prepare, they make an easy appetizer or light meal you can enjoy any night of the week. If you’re craving dim sum at home without the bill, this bargain should be at the top of your shopping list.

PediaSure Kids Shake $34.99/24 x 8 fl oz

Parents know how quickly nutrition shakes add up when bought at regular grocery stores, which is why Costco’s bulk PediaSure deal is unbeatable. Designed to support kids’ growth with protein, vitamins, and minerals, these shakes are doctor-recommended and kid-approved for picky eaters. The 24-pack ensures you’ll have plenty on hand for lunchboxes, breakfasts, or after-school snacks. Compared to buying smaller packs at supermarkets, this Costco bargain saves families money while giving kids a nutrition boost they’ll actually enjoy. September’s price makes stocking up smart and budget-friendly.

Dawn Professional Dish Detergent $15.79/1 gal

Costco’s bulk jug of Dawn Professional Dish Detergent is a kitchen essential that outshines grocery store versions on both price and performance. Known for cutting through grease, this formula handles everything from everyday dishes to stubborn pots and pans. The gallon size lasts far longer than smaller bottles, reducing trips to the store and overall costs. Many restaurants use this same formula for heavy-duty cleaning, so you know it’s reliable. For households looking to maximize value without sacrificing quality, this Costco deal is a no-brainer for September.

Swiffer Duster Heavy Duty Dusting Kit $15.99/1 handle + 17 refills

Cleaning is made easy with Costco’s Swiffer Duster Kit, which comes loaded with refills to last you months. The heavy-duty dusters trap and lock in dust, pet hair, and allergens that regular cloths often miss. Compared to grocery or big-box retailers where smaller refill packs cost nearly the same, Costco’s kit delivers serious savings per use. It’s a practical buy that makes cleaning faster, more efficient, and—dare we say—almost enjoyable. With fall cleaning season upon us, this September bargain is perfectly timed.

Golden Island Pork Snack Bites $16.99/12 x 1.5 oz

Snack lovers will appreciate Golden Island’s Pork Snack Bites, a savory and protein-packed treat with an Asian-inspired flavor profile. These chewy, smoky bites are perfect for on-the-go snacking, road trips, or even charcuterie boards. At grocery stores, specialty jerky and snack packs often carry steep price tags for much smaller quantities. Costco’s bulk bag gives you more for your money without sacrificing quality. If you want a satisfying snack to keep hunger at bay, this September deal belongs in your cart.

Full Thread Greek Saffron Jar $59.99/14 g Jar

Saffron is one of the world’s most expensive spices, but Costco makes it accessible with its Greek saffron jars. This vibrant red spice brings depth and luxury to dishes like risotto, paella, and even teas. At specialty grocers, saffron often costs double or triple the price for the same amount, making Costco’s offering a gourmet bargain. September is the perfect time to stock up for upcoming fall and holiday cooking, ensuring you can elevate your recipes without overspending.

ZOA Energy Drink $25.99/18 x 12 fl oz

Co-founded by Dwayne “The Rock” Johnson, ZOA Energy Drink delivers a clean boost of energy with vitamins, natural caffeine, and electrolytes. Costco’s 24-pack ensures you’re stocked with refreshing fuel for workouts, workdays, or long commutes. Grocery and convenience stores sell individual cans for nearly $3 each, but Costco’s bulk price brings the cost way down. For energy drink fans looking to save without sacrificing quality, this is a September must-buy that makes powering through your day more affordable.

Final Thoughts

From gourmet pantry staples like saffron to household cleaning giants like Dawn and Swiffer, Costco’s September lineup proves once again that bulk buying beats grocery store prices. Whether you’re filling lunchboxes, stocking your freezer, or upgrading your snack stash, these 11 bargains bring both savings and quality. Shopping smart at Costco this month means fewer trips to the store, more value in your cart, and plenty of essentials to get you through fall with ease.