How can I change my shipping or billing address on Costco.com?

Changing your shipping or billing address for an order is as easy as clicking "Change" in the address box on the Shipping or Payment steps during checkout. If you've already placed your order and need to change the shipping address, head here for more details.
 
If you'd like to change an address you have saved, simply Sign In, visit your Address Book, and click "Edit" on the address you want to update. You can even add a new address, set a different default shipping or billing address, or remove any existing addresses (you'll need to keep one default address though).
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