If you need to talk to a live customer service representative at Costco you need to dial 800-774-2678. Press 1 and enter your Costco Membership Number followed by #. If you are not yet a member press 0. The system will connect you to the next available live representative.
For your convenience below is the main menu of Costco customer service phone system:
- For membership information including executive member 2% rewards and for Costco services press 1
- For credit cards, Costco cash cards and for payment options accepted at Costco press 2
- For product and returns information or for your local Costco phone number, business hours and address press 3
- For Costco.com website inquiries including online orders and returns press 4
- For Costco travel press 5
Costco Customer Service Phones and Hours
- 800-774-2678: Costco Membership and Warehouse customer service hours are Monday-Friday, 6am-6pm PST, Saturday-Sunday, 8am-5pm PT
- 800-955-2292: Costco.com Online Orders customer service hours are Monday-Friday, 5am-8pm PST, Saturday-Sunday, 5am-7pm PST
- 866-861-0450: Costco Concierge Services Technical Support hours are Monday-Sunday, 5am-10pm PST
- 844-765-0251: Costco Home Improvement Installed Products hours are Monday-Friday, 5am-7pm PST, Saturday-Sunday, 7am-5pm PST
- 855-620-7579: Costco Photo Center hours are Monday-Sunday, 6am-8pm PST
- 877-849-2730: Costco Travel hours are Monday-Friday, 5am-9pm PST, Saturday-Sunday, 6am-5.30pm PST
- 800-788-9968: Costco Business Center Orders hours are Monday-Friday, 8am-5pm PST
- 800-607-6861: Costco Pharmacy customer service hours are Monday-Friday, 5am-7pm PST and Saturday, 9.30am-2pm PST
Costco Social Networks Contacts
You can view latest news from Costco team on Costco Facebook page.
You can send a tweet to Costco team on a Costco Twitter page.
You can view latest Costco Youtube videos at Costco Youtube channel.
Costco Customer Service Live Chat
To start a live chat with Costco customer service representative navigate to Costco Live Chat page, fill all required fields and click “Start Chat” button. Live chat hours are Monday-Friday, 5am-10pm PST, Saturday-Sunday, 6am-6pm PST
Costco Mailing Address
Corporate Mailing Address
PO Box 34331
Seattle, WA 98124