Contact Us

At Costco Wholesale, we value your feedback and are here to assist you with any questions or concerns about our membership, bulk products, and warehouse shopping experience. Here’s how you can get in touch with us:

Customer Service:
For assistance with your order, product inquiries (e.g., Kirkland Signature items, electronics, or groceries), membership questions, or general inquiries, our customer service team is available to help. You can reach us through the following methods:

Phone:
Customer Service: +1-800-955-2292
Available Monday through Friday, 5 AM to 8 PM PT, and Saturday through Sunday, 5 AM to 7 PM PT.

Email:
General Inquiries: customerservice@costco.com
Please include your membership number and any relevant details in your email for a quicker response.

Live Chat:
Access our live chat feature on customerservice.costco.com for real-time assistance during business hours.

Mailing Address:
Costco Wholesale Corporation
P.O. Box 34331
Seattle, WA 98124
USA

Connect with us on social media for updates, promotions, and shopping inspiration:
Facebook: facebook.com/Costco
Twitter: twitter.com/Costco
Instagram: instagram.com/Costco

We are committed to providing exceptional customer service and look forward to supporting your shopping needs. Thank you for choosing Costco Wholesale!