COMPANY CONTACT RECORD
Costco
Customer Service Number
TOLL-FREEMembership and warehouse (US)
1-800-774-2678 US Mon–Fri 6am–6pm PT; Sat–Sun 8am–5pm PT
Company-published number
Published sourceSource reviewed
Toll-free in the listed region. Mobile airtime and international charges may apply.
Independent company information. Etre Contact Atlas is not Costco’s service team. Contacts belong to the named provider. We do not answer or transfer your call.
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Choose a contact route
A Costco enquiry starts with the right destination. This entry separates published contact details from the directory’s own contribution forms. A return request may need instructions from the seller before you send the item. Contact availability can change after the displayed source-review date.
phone
Membership and warehouse (US)
1-800-774-2678US · Mon–Fri 6am–6pm PT; Sat–Sun 8am–5pm PT
Published sourceSource reviewed
phone
Online orders and Costco Logistics deliveries (US)
1-800-955-2292US · Mon–Fri 5am–8pm PT; Sat–Sun 5am–7pm PT
Published sourceSource reviewed
website
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Costco reviews
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