PHONE
Membership and warehouse (US)
1-800-774-2678Mon–Fri 6am–6pm PT; Sat–Sun 8am–5pm PT
View original sourceSource checked 2026-09-20
An independent reference. Amber Almanac is not Costco’s customer service team. The number above belongs to the company; we do not connect or forward calls.
THE AVAILABLE ROUTES
3 listed contactsGet in touch with Costco.
This entry identifies how to approach Costco using the available company-published routes. For a product enquiry, note the model, size or item reference. A contact listing is not an assurance that a particular outcome will be offered.
PHONE
Online orders and Costco Logistics deliveries (US)
1-800-955-2292Mon–Fri 5am–8pm PT; Sat–Sun 5am–7pm PT
View original sourceSource checked 2026-09-20
A LITTLE PREPARATION HELPSKeep the conversation
Keep the conversation
on track.
- 01
Personal documents belong in the seller’s secure channel, not a public comment.
- 02
An order confirmation identifies the purchase more precisely than a product name alone.
- 03
Check whether the purchase was made online, in a store or through a marketplace.
READER EXPERIENCES
Review guidelinesA space for your side of the story.
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THE RECORD BEHIND THE DETAILS
Sources & corrections.
Contact dates belong to individual routes. A newer editorial update does not mean every contact was rechecked on that day.
Entry edited 2026-10-25