Are Dogs Allowed in Costco? (Updated in 2026)

When we think of a big box store with a vast inventory of products, many of us think of Costco. With all our favorite items sold in bulk, what more could we need? If you’re a dog owner, you may wonder if Costco’s convenience goes as far as allowing dogs into the store, and we’re sorry to say that is not the case. Dogs are not permitted in Costco stores because they sell food, and allowing dogs into an area with food could lead to contamination or hygiene concerns. However, as with many rules, there is one exception.

What Is the Exception?

Although dogs are usually not allowed inside Costco, there is one instance where exceptions are made.

Service Dogs

Service dogs will always be accepted in Costco due to the Americans with Disabilities Act (ADA). As long as your service animal is trained and necessary for assisting you through daily tasks, you can bring your dog into the store with you. Some states may allow you to get your partially trained service animal into stores, but you must verify the specifics of your local ordinances.

Be aware that Costco reserves the right to ask you two specific questions regarding your service dog. These questions are:

• Is that a service animal?
• What task or function are they trained to perform?

These questions are asked to ensure that no health and safety laws are being broken. They are not meant to intimidate you or discourage you from bringing your service dog inside the facility. This policy lets Costco workers who may spot your dog during your shopping trip know that your dog has been previously recognized by a worker and is allowed on the premises. This saves you from the hassle of answering questions about your service animal multiple times during your shopping trip.

Therapy and emotional support dogs are not classified as service animals under the ADA, so they are prohibited in Costco. If your service dog is misbehaving or aggressive in the store, Costco reserves the right to ask you to remove your dog from the premises. Just because service animals are allowed inside does not mean they have the right to remain if you cannot handle your dog.

Refrain from lying to the Costco workers if your dog is not a service dog. If you are caught misrepresenting your dog as a service animal, you can be charged with legal or financial repercussions.

Anecdotal Accounts Suggest Otherwise?

We've come across anecdotal accounts of non-service animals being allowed into Costco. Some accounts refer to this as "managerial preference", and there's even been Costco employees posting on Reddit and other forums that, in fact, you can bring just about any pet into the store and nothing will be done about it. We remind you again that Costco's official policy is "service dogs only", and also suggest that abusing any loopholes in the policy shows a lack of empathy and care for others.

Are There Grocery Stores That Allow Dogs?

As nice as it would be to bring your dog with you to the grocery store, don’t count on it. Due to local, state, and federal laws, animals are not permitted inside stores where food is produced or sold. This is due to the risk of food becoming contaminated from the animal’s presence. If you are permitted to bring your animal into a grocery store, be mindful of other people’s hygienic concerns and make sure your dog does not get too close to food, packaged or otherwise.

Conclusion

In most instances, dogs are not allowed in Costco. However, if your dog is a service animal, exceptions apply. Before taking your dog to any public place, verify that animals are permitted. Some public locations reserve the right to refuse four-legged guests.

Related Reads:

• Are Dogs Allowed in Lowes?

• Are Dogs Allowed in TJ Maxx? (Facts & FAQs)

Featured Image Credit: Grant Beirute, Unsplash