Contact Us

Costco is committed to taking care of our members. How can we help you?

To find a warehouse nearest to you or to check trading hours, please see our Find a Warehouse page

If you have general questions about Costco please refer to our Member Care

If you need more help, please contact your local warehouse

Any online inquiry?

Send your inquiry to our member care by email at membercare@costco.com.au. Member care operating hours are Monday to Friday 9am to 5pm excluding public holidays.

How to become a Costco Supplier?

Please contact our buying office on (02) 9469 7999.

Address:

17-21 Parramatta Rd
Lidcombe NSW 2141

Mailing address:

PO Box 7196
Silverwater NSW 2128

Media enquiries

Contact: Central Marketing Manager on 02 9469 7999.

Costco Wholesale Australia Regional Head Office

Address:

17-21 Parramatta Rd
Lidcombe NSW 2141
Phone: (02) 9469 7999

Mailing address:

PO Box 7196
Silverwater NSW 2128

Office Hours:

Monday – Friday: 8:00am – 5:00pm
Closed on public holidays.
*Please refer to the Auburn Location Map