THE COVEREGISTER.A company contact
reference for everyday life.

COMPANY RECORD № 217

Costco

Costco logo
costco.comOfficial company website

Customer Service Number

TOLL-FREE
1-800-774-2678

Membership and warehouse (US)

USMon–Fri 6am–6pm PT; Sat–Sun 8am–5pm PT

01 / CONTACT ROUTES

Choose the right point of contact.

The information below gives a source-linked route to Costco and preparation notes for your enquiry. Ask which document or photograph is needed instead of sharing everything publicly. Any transaction remains between you and the company or seller.

Telephone

Online orders and Costco Logistics deliveries (US)

1-800-955-2292
USMon–Fri 5am–8pm PT; Sat–Sun 5am–7pm PT

SourceReviewed 2026-09-20

02 / BEFORE YOU CONTACT

A little preparation.
A clearer conversation.

  1. 01

    Ask which document or photograph is needed instead of sharing everything publicly.

  2. 02

    Locate the purchase confirmation before asking about an individual item.

  3. 03

    A store receipt and an online order can lead to different return procedures.

03 / READER EXPERIENCES

Your experience with Costco

Published contributions come from readers. New submissions are reviewed before appearing here.

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Write about your experience

Your experience with Costco

The Cove Register reviews contributions before publication. We do not send this form to Costco.

04 / THE RECORD

Sources & editorial notes

Read the original material when a deadline, availability or eligibility decision matters.

01costco.com/
02customerservice.costco.com/app/answers/answer_view/a_id/8162/~/contact-us
03customerservice.costco.com/app/answers/answer_view/a_id/8162

Source-review dates describe an evidence check, not a test call. Contact availability may change. Editorial text updated 2026-10-24.

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