Quick Answer
Costco sells several Kirkland Signature dog food options: dry formulas (grain-inclusive recipes with chicken or lamb, and a grain-free salmon-and-sweet-potato recipe) and wet canned food (Chicken & Rice formula, plus chicken, turkey, and beef varieties). All are positioned as premium-quality foods at affordable prices. A feeding guide is available to help you determine daily portions based on your dog's weight.
Main Explanation
Costco's dog food lineup is built around its house brand, Kirkland Signature. Below is a breakdown of the main options based on available product pages and reviews.
Dry Dog Foods
Kirkland Signature Adult Formula (grain-inclusive) – This line uses chicken or lamb as the first protein source and includes grains such as rice and vegetables. According to a detailed review by Dog Food Advisor, these recipes are high-quality, affordable, and feature chicken or lamb as the main ingredient. The Adult Formula Lamb, Rice and Vegetable version is available through Costco Same-Day delivery.
Kirkland Signature Nature's Domain Salmon and Sweet Potato (grain-free) – This formula uses salmon meal and ocean fish meal for protein and omega-3 fatty acids. The ingredients are chosen to support overall health and vitality. It is a grain-free option for dogs that need to avoid grains.
Wet Dog Foods
Kirkland Signature Canned Dog Food (Chicken & Rice) – Sold in a 24-count case of 13.2 oz cans. Chicken is the first ingredient, and the formula is complete and balanced for all life stages.
Kirkland Signature Wet Food (chicken, turkey, beef) – A social media post (Instagram) describes Kirkland wet dog food available in three flavors (chicken, turkey, and beef) at a price point of around $12.99 per case. This information comes from a user post and should be verified in-store.
Decision Framework
Use the following ordered steps to choose the right Costco dog food for your dog.
Step 1: Decide between dry and wet (or both)
- Dry food – More economical, helps with dental health, and has a longer shelf life. Choose dry if you prefer kibble.
- Wet food – Higher moisture content, more palatable for picky eaters, and can be used as a topper. Choose wet if your dog needs hydration or prefers soft textures. You can also mix wet and dry.
Step 2: If choosing dry, pick a protein base
- Chicken or Lamb (grain-inclusive) – Best for most dogs without grain sensitivities. These are the standard Kirkland Signature recipes. Look for the Adult Formula Chicken or Adult Formula Lamb, Rice and Vegetable.
- Salmon (grain-free) – Ideal for dogs with grain allergies or sensitivities. The Nature's Domain Salmon and Sweet Potato provides omega-3 fatty acids.
Step 3: If choosing wet, pick a flavor
- Chicken & Rice – Complete and balanced for all life stages.
- Chicken, Turkey, or Beef – Available in multi-flavor cases; use according to your dog's preference.
Step 4: Determine the portion size using the feeding guide
- For dry food, refer to the guide on the bag or the official Costco PDF. Start with the low end of the recommended range and adjust based on your dog's weight and activity.
- For wet food, follow the can's feeding instructions (typically one can per 10–15 lbs of body weight, divided into two meals).
Step 5: Purchase and consider delivery options
- You can buy directly from Costco warehouses or online at costco.com.
- If you prefer delivery, Costco Same-Day (powered by Instacart) can bring Kirkland Signature dog food to your door in as fast as one hour, though a Costco membership is required.
Note: The above recommendations are based on product descriptions, a third-party review, and official feeding guidelines. Always consult your veterinarian before changing your dog's diet.
References
1. Costco Dog Food page – costco.com/dog-food.html
- Kirkland Signature Nature's Domain Salmon and Sweet Potato – costco.com product page (4000399020)
- Dog Food Advisor – Kirkland Signature Dry Review – dogfoodadvisor.com/dog-food-reviews/kirkland-signature-dry
- Costco Same-Day – sameday.costco.com/store/costco/collections/rc-dog-food-care
- Kirkland Signature Canned Dog Food 13.2 oz 24-count – costco.com/p/-/kirkland-signature-canned-dog-food-132-oz-24-count/4000042060
- Instagram reel mentioning Kirkland wet dog food flavors and price – instagram.com/reel/DVE65HTET3E/
- Costco Feeding Guide PDF – costco.com/wcsstore/CostcoUSBCCatalogAssetStore/Attachment/470974.pdf
