Costco is great for stocking up on items for the house and kitchen, but it’s also the one-stop shop for your furry friends. Whether you’re looking for pet care products, food, or even pet insurance, Costco has you covered. 

Are you preparing to add a pet to your family and want to stock up on the essentials? Or maybe you need to switch out your current dog food? Try out some of the best Costco dog food that will help you save money without skimping on the quality! 

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Does Costco Only Carry Kirkland Signature Dog Food?

Believe it or not — no! While Kirkland Signature is Costco’s exclusive brand and is known for its high-quality dog food, Costco also carries the Blue Buffalo dog food brand in-store.

Kirkland Signature dog food comes in both dry and wet forms for dogs of all ages and weights. It is available online at Costco.com in addition to store locations throughout the U.S. Keep in mind that Kirkland Signature dog food can only be bought at Costco. You won’t be able to find this brand at any other pet store. 

On the other hand, Blue Buffalo is a widely known dog food brand that can be found at other pet supply and grocery stores throughout the country. You’ll only be able to find this brand in person at Costco stores as it is not currently available online. If you see Blue Buffalo bags at your local Costco, the benefit to buying this dog food is that it is available in bulk for less than other retail stores. They often sell adult dog food at Costco. 

Is Kirkland Signature Dog Food Good?

Every dog parent has their favorite food brands, and if you’re worried about choosing Kirkland Signature, let me ease your mind. While store-brand pet food is usually low-quality and cheap, Kirkland Signature is the exception. It’s extremely high-quality while still being affordable, and has fresh ingredients like fresh protein and vegetables. It’s also filled to the brim with nutrients like omega fatty acids and vitamins. 

While Kirkland Signature dog food is made for Costco to be sold only at Costco stores, the pet food is actually produced and manufactured by Diamond Pet Foods, Inc., which is one of the biggest names in pet food. They make popular brands like Taste of the Wild and Solid Gold, so you know it’s great quality. 

Kirkland Signature also has the perfect variety of dog food. They offer dry and canned food with several different proteins and age ranges. There are two kinds within the brand, Super Premium and Nature’s Domain. Super Premium is more of the basic selection with the main ingredient primarily being chicken with vegetables. Nature’s Domain expands its protein list to lamb, turkey, and salmon and focuses on being grain-free. Both sides come in formulas made for puppies, smaller breeds, and adults.

Every dog has their own unique tastebuds, so I can’t promise that your dog will like the first pet food that you buy. But once you find the right flavor combination, your pup will surely be in love as they’ll get the right nutrients they need to stay healthy and happy, all while eating delicious, high-quality, and fresh protein and produce. 

Best Costco Dog Food to Buy 

For the best Costco dog food that you can buy, keep reading! With so many amazing choices, it’s hard to pick a favorite. Below is a list of options that range in flavor combinations and age ranges. From puppies to small breeds, adults to seniors, this complete list can help you find the best option for your pup.

Kirkland Signature Puppy: Chicken, Rice, and Vegetables

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Ready to add a puppy to your family? Stock up on the Super Premium Puppy dog food. With the first ingredient being chicken, this puppy food is filled with probiotics to help digestive health while providing the right amount of protein, fat, and nutrients that your pup needs to grow. It’s also made with salmon oil which is the perfect addition to supply Omega-3 to support brain and eye development. This formula is perfect for your pup as it’s smaller kibble to help your dog chew easier. 

Kirkland Signature Nature’s Domain Puppy: Chicken and Pea

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Onto the Nature’s Domain recipe: This chicken and pea formula is made specifically for pups, as well as pregnant and nursing mothers. This formula has added DHA to promote proper brain and vision development and Omega-3 fatty acids for skin and coat health. This supports the overall health of pups all in smaller kibble sizes to help your pup chew and digest. 

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Kirkland Signature Small Dog: Chicken and Vegetables

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Costco looks out for all types of breeds! If your dog needs smaller kibble while still getting the nutrients other adult food provides, then this Super Premium Small Breed is the way to go. It’s formulated with balanced levels of omega fatty acids for supple skin and a shiny coat. It focuses on prebiotics and probiotics for sensitive digestion. This is one of the best Costco dog foods for breeds under 40 pounds. 

Kirkland Signature Nature’s Domain Small Dog: Salmon and Lentil 

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Similar to Super Premium, Nature’s Domain Small Dog formula is perfect for dogs under 40 pounds. Salmon and Lentils is a great grain-free dog food that provides extra vitamins and nutrients for the little furry friends in your life. With extra fiber from psyllium seed husk and dried chicory root, your dog can help keep a proper intestinal balance. Thanks to its small kibble, it’s perfect for small mouths while still having a crunch to clean teeth. 

Kirkland Signature Adult: Chicken, Rice, and Vegetables

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Like the puppy formula, the Super Premium Adult food is one of the best Costco dog foods that you can buy. It’s made with the same ingredients, mainly chicken, but is perfect for your grown dogs. With enriched garden vegetables, fruits, and herbs, this dog food contains glucosamine and chondroitin which is incredibly important to help support healthy joints. Thanks to the omega fatty acids, this food can help with your dog’s immune system while maintaining a shiny coat. This is the perfect choice to help support your dog’s healthy and active lifestyle. 

Kirkland Signature Adult: Lamb, Rice, and Vegetables

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

This Super Premium dog food is a lamb-based diet, a great protein choice for a dog that needs a change in flavor or might have an allergy to chicken. It’s blended with eggs plus whole-grain brown rice. Like the previous one, this dog food focuses on supporting healthy joints, and an active and healthy lifestyle while keeping your dog’s coat healthy. 

Blue Buffalo Adult: Chicken and Brown Rice

Blue Buffalo Costco Dog Food Chicken

Chicken is the star of this recipe, along with whole grains, fruits, and veggies. Rich in antioxidants and a perfect blend of vitamins and minerals, this formula is perfectly made to support your dog’s immune system through its adult life stages. Blue Buffalo makes sure that their dog food is always made with the highest quality ingredients.

Blue Buffalo: Lamb and Brown Rice

Blue Buffalo Costco Dog Food Lamb

Formulated for the health and well-being of your dog, Blue Buffalo has some great recipes for adult dogs. This dry food mix is made with natural ingredients, the main one being lamb. This is perfect for a protein swap if your dog has an allergy. Along with lamb, it’s also filled with high-quality fruits, veggies, and whole grains.

Kirkland Signature Nature’s Domain: Salmon and Sweet Potato

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Salmon and sweet potato is the perfect blend for dogs that might have an allergy. As chicken, beef, and pork are the most common protein allergies, salmon and sweet potato are a go-to for those who are just a bit too itchy. And this formula is perfect for adults and seniors.

Kirkland Signature Nature’s Domain: Turkey and Ancient Grains

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Credit: Costco

Made for all stages of life, from puppies to seniors, this Nature’s Domain formula with turkey and ancient grain is perfect for high protein and carbohydrates. This is one of the healthier options when it comes to dog food. Also made with high fiber and high Omega fatty acids, it’s the perfect blend to help digestive health and skin and coat health. 

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Kirkland Signature Nature’s Domain: Beef and Sweet Potato

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Credit: Costco

For a high-protein formula, Nature’s Domain beef and sweet potato is a classic. Not only is beef a favorite for dog owners, but the nutrients help support overall health and vitality for your dogs. It has a great blend of Omega fatty acids, vitamin E, and dried chicory root to provide healthy skin and coat and a healthy digestive system for an overall healthy lifestyle.

Kirkland Signature Nature’s Domain: Turkey and Sweet Potato

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Nature’s Domain has a variety of proteins, and their turkey option is one of the best Costco dog food formulas. This grain-free formula offers optimal nutrition for overall health but caters to your dog’s needs. With each cup providing active cultures that help support healthy digestion and maintain an active lifestyle, this can be your next go-to dog food that works for adults and seniors. 

Kirkland Signature Mature: Chicken, Rice, and Egg

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

For the senior pups in your family, try swapping them to Super Premium Mature food. This is the ideal formula to help your seniors get the nutrients they need. With added nutrients for joint health, as well as vitamin E, selenium, zinc, and strong Omega fatty acids, this food helps support their immune system. Make sure to keep older dogs healthy and strong with this amazing high-quality formula. 

Kirkland Signature Canned: Chicken and Rice

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Both Super Premium and Nature’s Domain carry a selection of canned food as well for wet dog food lovers. If you’re buying dry food, you might as well grab a package of wet food, as it’s a great way to provide enrichment for your dog. Not only is the formula great for your pet as it contains numerous vitamins that the dry has, but it’s extremely versatile. Add this to a slow feeder for the dogs that inhale their food, or freeze it in a lick mat with some vegetables to give your pet something fun to do while you want alone time. 

Kirkland Signature Nature’s Domain Canned: Turkey and Pea Stew

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

Similar to Super Premium, Nature’s Domain is a great choice for wet dog food, and with the turkey and pea stew blend, this is a great alternative to grab if you’re not a fan of chicken or beef. Nature’s Domain focuses on a variety of age ranges with this dog food to serve puppies to seniors. And thanks to it being grain-free, you have one less thing to worry about when it comes to allergies or sensitivities. 

Kirkland Signature Healthy Weight: Chicken and Vegetables

Best Costco Dog Food, Kirkland Signature, Costco
Credit: Costco

What if your dog is gaining some extra weight that could cause joint problems and other issues? Kirkland Signature Super Premium has the solution for you. Put them on their weight management formula that is perfect for those who are prone to weight gain or are currently overweight and need a diet swap. Made with fresh chicken and vegetables, this formula has high levels of fiber and fat for optimal digestive health. With only 275 calories per cup, compared to the average 350 calories on the other choices, you can help your dog live a healthy lifestyle. 

Does Costco Carry Other Dog Supplies?

Yes! Costco ensures that you have everything you need to make your pup’s life a breeze. Not only do the Kirkland Signature and Blue Buffalo brands offer the best quality food, but Costco also has supplies like dog beds and absorbent pads at an affordable price. And let’s not forget to add toys and treats.

The main perk to shopping for dog supplies at Costco though is that they offer pet insurance! Never worry again about making sure your pets are protected and safe. This really makes this wholesaler the best pet store you could ask for. 

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