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

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

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

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

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 search engine. If the product doesn’t come up in search, that means the product is currently unavailable for purchase on Costco.com.

Costco Wholesale P.O. Box 34331 Seattle, WA 98124. Finally, feel free to call us at 425-313-8100. We’re ...

To view products on Costco.com, either type what you’re looking for into the Search box, or mouse over "Shop" to view our different categories. Simply click on the name or picture of an item to navigate to its product page. The great thing about shopping on Costco.com is that everything you see reflects our live, real-time and up-to-date ...

Business Memberships allow you to purchase products for business, personal, and resale use at any Costco Wholesale location worldwide and online at Costco.com. One additional card is also provided for a member of your household at no additional charge. Like all Costco memberships, it’s valid for one year and must be renewed annually.

Costco Grocery Delivery: Costco grocery delivery is only available in select markets and is only available to Costco Members. Orders are limited to one address per delivery. Costco grocery delivery is available via two options: 2-Day Delivery of non-perishable items. Items marked 2-Day Delivery are subject to a $3 delivery surcharge per item.

You’re always welcome to renew your membership in person—simply do so while you’re checking out at a Costco location, it’s that simple! If you prefer a phone call, the number is 1-800-774-2678. If you’d like to renew by mail, please send it to the following address: Costco Wholesale, P.O. Box 34783, Seattle, WA 98124-1783.