Costco Hours

Costco Business Hours

If you want to connect with the Costco customer service department, you can reach out by phone, email, through social media. Today, we will discuss about Costco hours of operation that includes Costco opening hours, closing, holiday hours and closing business hours.

Costco Regular Customer Service Hours

Weekdays: The customer service department is open 6 am to 6 pm
Weekends: The customer service department is open 8 am to 5 pm

Store hours todayOpening HoursClosing Hours
Monday6:00 am6:00 pm
Tuesday6:00 am6:00 pm
Wednesday6:00 am6:00 pm
Thursday6:00 am6:00 pm
Friday6:00 am6:00 pm
Saturday8:00 am5:00 pm
Sunday8:00 am5:00 pm

Costco Holiday Hours

Costco customer service is open on most public holidays. Our self serve functions are available 24/7.
Christmas Day and Easter Sunday: Closed

Public Holidays

Contact Information

Contact by phone


Costco customer support is available Monday to Friday, 6 am to 6 pm, Saturday to Sunday, 8 am to 5 pm.

Corporate Head office address of Costco

999 Lake Dr, Issaquah, WA 98027

For any general inquiries, please contact Costco head office number : (425) 313-8100

For additional information, please visit the Costco website:


Can I chat with Costco customer service?
Select the Chat Us option on this page. *Hours vary by department. Hours vary by department.

Who is 800 774 2678?
For general questions about your Costco membership, please contact Costco Membership and Warehouse Services by chat or phone at 1-800-774-2678.

How do I speak to a Costco agent?
You can call the Costco membership customer service phone number at 1-800-774-2678. Alternatively, you may send them an email by visiting the “Contact Us” section on their website and selecting the email or live chat option from the “Contact Us” section.

How do I contact Costco technical support?
Using Costco Concierge is simple—just call 1-866-861-0450.

Other Ways to Contact Costco

All Contacts of Costco
Costco Phone Number
Costco Customer Service
Contact Costco via Email
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Help Pages Support
Costco Corporate Office
Make Complaint to Costco
Login in to Costco

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