Contact Us

Image Chat With Us
For your security, we are unable to process any membership fee credit card transactions via chat.
Monday to Friday, 5am to 10pm PT
Saturday to Sunday, 6am to 6pm PT

Image Self-Service Options

Image Give Us a Call
Hours vary by department.


Image Corporate Mailing Address
PO Box 34331
Seattle, WA 98124


Does Costco Customer Service offer email support?

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