Find your nearest Costco warehouse location and explore helpful self-service options for customer support.

Welcome to the Costco Customer Service page. Explore our many helpful self-service options and learn more about popular topics.

Costco and Cosco are two different and unrelated companies. We — Costco Wholesale — are a publicly owned company with corporate offices in Issaquah, Washington. We are committed to offering low …

How can I contact the Costco Corporate Offices? We are happy to call Washington state our home. Visit our corporate offices at: 999 Lake Drive Issaquah, WA 98027 Or, write us at our mailing address: …

The great thing about shopping on Costco.com is that everything you see reflects our live, real-time and up-to-date inventory. The flip side is that the items on offer, including promotional offers, are limited …

If you’re a member, enter the membership number found on your membership card. You’re now ready to start shopping! Note: Maintaining an active Costco membership doesn’t automatically register you on …

Welcome to the Costco Customer Service page. Explore our many helpful self-service options and learn more about popular topics.

To search for a product online at Costco.com, enter a keyword or an item number into the search engine at the top. If the item you’re seeking is in stock and available for purchase, your search will pull up its …

Hearing Aids: Please contact the Hearing Aid center at your Costco Warehouse. How to Return an Item Products purchased at a Costco location need to be returned at the returns counter at any Costco …

How do I find Costco member-only savings online? To search for specific Costco member-only savings items online, head over to Costco.com and enter either the product name or item number into the …