Contact us
How can we help you?
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.
Any online enquiries?
Please contact our Member Care team on (03) 5316 7223 or reach out to us via our Support bubble. Member Care’s operating hours are Monday to Friday 8am to 5pm, excluding public holidays.
How to become a Costco supplier?
Please contact our buying office on (02) 8527 6100.
Media enquiries
Contact our central marketing manager on (02) 8527 6100.
Costco Wholesale Australia regional home office
Address:
17-21 Parramatta Rd, Lidcombe NSW 2141, Australia
Mailing address:
PO Box 7196, Silverwater NSW 2128, Australia
Member Care team:
Australia and New Zealand Country Manager:
Office hours:
Mon–Fri: 8am–5pm
Closed public holidays