How to Reach Costco Customer Service

You can reach Costco customer service by dialing their 800 support number which is 1-800-220-6000. Live customer service is available via this number M-F 10:00am - 8:30pm., Sat. 9:30am - 6:00pm., Sun. 10:00am - 6:00pm...

You can also contact the company headquarters via 1-425-313-8100. Please note that this is not a customer support 800 number but a phone number form Costco corporate office.

Costco Customer Service on Social Networks

You can also reach Costco customer service via social networks. You can reach Costco Facebook page at or via Costco Twitter page at

Costco Brief History

Costco was founded in 1976. Its first headquarters were located in .

Costco Customer Service Options

Costco Online Customer Service and Other Useful Links

Costco Phone Numbers

    For customer service dial 1-800-220-6000. Via this number you can reach Costco support department. For other departments see table below:

  • Call Costco 800 number via 1-800-220-6000
  • Call Costco 800 number via 1-425-313-8100

Costco Customer Service Working Hours

You can call Costco customer service and reach live customer service agent during following working hours: M-F 10:00am - 8:30pm., Sat. 9:30am - 6:00pm., Sun. 10:00am - 6:00pm.. Call center phone number is 1-800-220-6000.

Read more information about Costco.



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