Home Postcode finder QLD Oyster Creek Oyster Creek postcode QLD Oyster Creek is a locality in Queensland covered by postcode 4674. Postcode 4674 State or territory Queensland (QLD) Region Sunshine Coast Add a free Oyster Creek business listing Be the first listing in Oyster Creek Common questionsWhat is the postcode for Oyster Creek?Oyster Creek, QLD has the postcode 4674.What state is Oyster Creek in?Oyster Creek is in Queensland (QLD).Does postcode 4674 cover more than one suburb?Yes. Postcode 4674 covers 9 localities, so the postcode alone does not identify Oyster Creek. Browse other postcodes in Queensland, or widen the search to every Australian postcode.