Costco Customer Service & Contact Information
Members-only warehouse club with bulk savings.
About Costco
Costco Wholesale is a membership warehouse club famous for bulk quantities and low prices on groceries, electronics, appliances, furniture, and more. Costco.com lets members shop online, including items not stocked in warehouses, plus same-day grocery via Instacart. Membership tiers (Gold Star and Executive) unlock warehouse access, gas discounts, and 2% annual rewards on Executive plans.
How to contact Costco
There are several ways to reach Costco's customer support team. The quickest option for many shoppers is to call the customer service line at 1-800-774-2678 during support hours (Mon–Fri, 5am–8pm PT). You can also visit the official website to use live chat, email or the online help center, manage your account, and check order status.
- Phone: 1-800-774-2678 — Mon–Fri, 5am–8pm PT
- Online help center: available on the official website, https://www.costco.com
- Account & orders: sign in at https://www.costco.com to track shipments, start returns, and view receipts
- Headquarters: Issaquah, Washington (founded 1983)
Returns, shipping & order tracking
To return an item or track an order from Costco, sign in to your account on https://www.costco.com. From your order history you can usually print a prepaid return label, request a refund or exchange, and follow the delivery status of any shipment. Return windows and shipping options vary by item and season, so review the store's current policy on its website before you buy. Many US retailers also accept in-store or drop-off returns in addition to returns by mail.
What Costco sells
Costco focuses on warehouse club, with popular categories including:
Frequently asked questions
What is the Costco customer service phone number?
Costco's publicly listed customer service line is 1-800-774-2678. Support hours are typically Mon–Fri, 5am–8pm PT. Always confirm the current number on the official website at https://www.costco.com, as published numbers can change.
How do I contact Costco for help with an order?
You can reach Costco through its Help Center on https://www.costco.com, by phone at 1-800-774-2678, and often via live chat or email. Have your order number ready so an agent can look up your purchase quickly.
Where is Costco headquartered?
Costco is headquartered in Issaquah, Washington. It was founded in 1983. For corporate or media inquiries, use the contact information published on the company's official website.
How do I return an item to Costco or track my order?
Sign in to your Costco account on https://www.costco.com to view orders, print a return label, or track a shipment. Most major US retailers offer online returns by mail plus in-store or drop-off options; check the store's current return window and policy before you start.
What does Costco sell?
Costco specializes in warehouse club and carries Groceries, Electronics, Appliances, Furniture, Travel, and Pharmacy. See the overview above for more about the store.
Disclaimer: pricenovax is an independent directory and is not affiliated with, endorsed by, or sponsored by Costco. Contact details are publicly listed and may change — always verify on the official website before relying on them.
