Are dogs allowed in Costco?
Policy not published, varies by store
Policy not published, varies by store.
Policy not published, varies by store.
What Costco says
Costco's published policy covers service animals only: members with service animals have immediate access, and staff may ask whether it is a service animal and what task it is trained to perform. It does not publish a separate statement on pet dogs.
Source: Costco: Are service animals allowed in Costco Warehouses? (checked 15 October 2026)
Country covered: United States. We only report what the retailer itself publishes. If you see something different in store, the store's staff have the final say.
Out and about with your dog?
Find somewhere to stay that welcomes dogs, or pick up a good lead and travel bowl.