To find a warehouse near you or check trading hours, please see Find a warehouse.
If you have general questions about Costco, please refer to Member care.
If you need more help, please contact your local warehouse.
Please contact our Member Care team on (03) 5316 7223 or send your inquiry to our Live Chat. Member Care’s operating hours are Monday to Friday 8am to 6pm, excluding public holidays.
Please contact our buying office on (02) 9469 7999.
Contact our central marketing manager on (02) 9469 7999.
17-21 Parramatta Rd
Lidcombe NSW 2141
PO Box 7196
Silverwater NSW 2128
Closed public holidays