Costco Customer Support

Customer Support details for Costco. All the updated details and channels for contacting Costco. provides contact details for leading companies and websites. We do not provide any customer support ourselves. All the information on this website is gathered from the companies websites, social media and customer feedback. We work constantly to ensure that the information provided on this site is up-to-date and accurate. In case we have missed anything, or if any contact detail is inaccurate, feel free to update us.

About Costco

Costco is a membership warehouse club, with hundreds of locations worldwide. Costco was founded in 1983 and is one of the largest wholesale corporations in the world.

Select a contact method:

Costco Customer Support – Call Center

Costco customer support call center phone number: 1-800-220-6000.

Costco call center operating hours: 24/7.

Costco Customer Support – Website

Costco customer support, knowledge center and self service at click here.

Costco Customer Support – Email

Costco customer support email address: [email protected].

Costco Customer Support – Chat

Costco customer support chat link: click here.

Costco Customer Support – Whatsapp

– No whatsapp support.

Costco Customer Support – facebook

Costco customer support facebook link: click here.

Costco Customer Support – Twitter

Costco customer support twitter link: click here.

Costco Customer Support – Address

Costco customer support address (or headquarters address): Costco Wholesale, P.O. Box 34331, Seattle, WA 98124, USA.